|2013 Scion iQ EV. Click to enlarge.|
Toyota Motor Sales (TMS) USA announced the arrival of the 2013 Scion iQ EV in the United States. (Earlier post.) The iQ EV is a battery-electric four-seater city commuter car designed for car-sharing programs, in urban and campus environments; Toyota is targeting around 90 units for these applications.
The iQ EV features a power consumption rate of 104 Wh/km. In ideal stop-and-go driving conditions, the 12 kWh Li-ion battery provides an estimated range of up to 50 miles on a full charge. The vehicle can be fully charged in approximately three hours at 240V. Its 78-inch wheel base and 13.5 foot turning radius makes the iQ EV highly maneuverable in congested areas where streets are narrow and parking is at a premium.
Toyota believes battery-electric vehicles have the potential to play a role in future mobility strategies. Up to now, cost and convenience issues have limited BEV’s appeal with a broad consumer market. Toyota developed the iQ EV specifically as a city commuter, for use in an urban environment, where driving distances are likely to be short, charging opportunities numerous, and its compact proportions beneficial.
Approximately 90 iQ EVs will be available for fleet and car-sharing applications. hese programs will further expand Toyota’s comprehensive portfolio of advanced technology vehicles which includes the recently-released RAV4 EV, the Prius Family of gas-electric hybrid vehicles, including the Prius Plug-in Hybrid, and the FCHV-Adv (Fuel Cell Hybrid Vehicle-Advanced).—Chris Hostetter, TMS group vice president of strategic planning
TMS will announce details on individual iQ EV program partners in the coming weeks.
The iQ EV development process strongly focused on the conservation of power consumption. A compact lightweight body, power-saving electrical equipment, and the application of experience gained from hybrid and plug-in hybrid development resulted in the iQ EV’s good all-around performance. The iQ EV offers energy conserving features such as regenerative braking; heat pump air conditioning with a pre-conditioning option; LED high-mounted stop light; heated front seats; and a heated windshield defroster.
The iQ EV is equipped with a timer to match charge completion time with the time the vehicle will actually be driven, to help reduce battery degradation. In addition, there are three driving modes to select from: D range controls the vehicle to use the least amount of power during city driving; S range increases acceleration performance for brisker driving; and a B range that maximizes regenerative braking efficiency.
Maximum output from the drivetrain is 47 kW (63 hp) with a maximum torque of 120 lb-ft (163 N·m). In S range the iQ EV accelerates from zero to 60 mph in 13.4 seconds, and from 30 to 50 mph in seven seconds. Its top speed is 78 mph (126 km/h).
The iQ EV is equipped with an HDD navigation system and an exclusive AVN unit with several EV driving support features. The screen is a seven-inch Video Graphics Array LCD, which displays audio information or vehicle information (such as power consumption and energy flow information) in a split screen with the map on the main navigation screen. An available range map displays an estimate of the distance the iQ EV can travel on its current state of charge.
The iQ EV is equipped with 11 SRS (Supplemental Restraint System) airbags including knee, side, seat cushion, front and rear curtain, and a rear window curtain airbag. The front passenger seat is equipped with an occupant detection system. The iQ EV’s multiple load path body is designed to absorb and disperse frontal collision impacts through the body shell. The front tires have been moved forward so collision impacts are dispersed to the tires, helping to reduce impact to the cabin.
Other impact dispersing features include front suspension members arranged in a cross hatch pattern and a larger dash cross member for offset impacts. A cross-hatched constructed battery frame joined to the body frame helps enhance the rigidity of the cabin and helps disperse the energy of collisions from any angle.
Like all new Toyota vehicles, iQ EV comes standard with the Star Safety System, which combines Vehicle Stability Control (VSC), Traction Control (TRAC), Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA) and Smart Stop Technology (SST). The iQ EV is also equipped with Hill start assist control and a vehicle proximity notification system to alert pedestrians of the vehicle’s approach.
iQ EV is manufactured at Toyota’s Takaoka Plant in Toyota City. Production began in September 2012.