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2012 Buick Regal eAssist


Buick announced the 2012 Regal with eAssist fuel-saving technology, which improves overall fuel economy by 25 percent over the 2011 four-cylinder/six-speed powertrain. Estimated fuel economy is 26 mpg city and 37 mpg on the highway (pending EPA certification). (continued below)

2012 Regal eAssist Photo Gallery
2012 Buick Regal eAssist 2012 Buick Regal eAssist 2012 Buick Regal eAssist 2012 Buick Regal eAssist 2012 Buick Regal eAssist

2012 Regal to Offer New eAssist Fuel-Saving Technology

Source: Buick | Published: Tue Feb 08, 2011

(continued from above)

Regal with eAssist joins the 2012 LaCrosse as the second Buick to feature the efficiency-enhancing technology. The system uses a state-of-the-art lithium-ion battery system, electric induction motor-generator and regenerative braking capability to improve fuel economy. Its fuel economy tops competitors such as the Acura TSX, rated at 22 mpg city and 31 mpg highway. Regal's estimated 37 mpg on the highway is 20 percent greater and the TSX doesn't offer a six-speed automatic transmission, which is standard on the Buick.

"Buick's eAssist technology means customers don't have to trade a premium driving experience for efficiency," said Tony DiSalle, vice president of Buick marketing. "We believe Regal and LaCrosse with eAssist provide more logical and affordable choices, compared to other hybrid midsize and full-size luxury sedans."

2012 Buick Regal with eAssist goes on sale this fall. It joins an expanding lineup that also includes 2.4L and 2.0L Turbo (with manual transmission) models, as well as the upcoming Regal GS. Regal with eAssist offers the range of luxury and convenience packages offered in the other models, along with unique features that include:

  • Lightweight 17-inch alloy wheels and tires with lower rolling resistance
  • A driver-selectable, fuel economy-optimizing mode for the air conditioning system, which enables more frequent and longer-duration engine stop periods
  • An ECO gauge on the instrument panel that continuously responds to driving behavior, enabling the driver to drive with greater efficiency
  • A powerflow readout in the 7-inch infotainment screen, which shows the flow of energy through the electric assist system, such as battery charging from regeneration and electric power directed to the engine.

2012 Regal's eAssist Details

Mated to 2012 Buick Regal's 2.4L Ecotec direct injection four-cylinder engine and next-generation six-speed automatic transmission, the eAssist system uses power stored in the battery to provide needed electrical boost in various driving scenarios, optimizing engine and transmission operation. An advanced 115V lithium-ion battery and latest-generation 15-kW induction motor-generator unit help increase fuel economy through:

  • Regenerative braking, which provides up to 15 kW of electricity to charge the battery
  • Providing up to 11 kW (15 hp) of electric power assistance during acceleration
  • Automatic engine shut-off when the vehicle is stopped
  • Aggressive fuel cut-off during deceleration down to zero vehicle speed, enabled by the torque smoothing provided by the induction motor-generator unit
  • Intelligent charge/discharge of the high-voltage battery.

"The capability to deliver electric boost to the powertrain system during heavy acceleration and grade driving enables the engine and transmission to operate more efficiently," said Steve Poulos, global chief engineer of the eAssist system. "Full fuel shutoff at stops and during deceleration complements electric boost and regenerative braking with additional fuel savings."

Buick Regal eAssist: Review (2/2)

Specifications
Key: AT - automatic transmission, MT - manual transmission, F/R/AWD - front/rear/all wheel drive
Powertrain
Type I4 + Electric Motor
Displacement 145 cu in (2384 cc)
Power 182 hp @ 6700 RPM
Torque 142 lb-ft @ 4900 RPM
Redline 7000 RPM
Electric Power 15 hp
Electric Torque 79 lb-ft
Driveline Front Wheel Drive
Transmission 6 Speed Automatic
Brakes & Tires
Brakes Front - Rear Ventilated Discs - Solid Discs
Tire Size Front - Rear 235/50 R17
Exterior Dimensions & Weight
Length 190.2 in
Width 73.1 in
Height 58.4 in
Curb Weight n/a
Performance
0-60 n/a
1/4 Mile n/a
60-0 Braking n/a
Top Speed n/a
Fuel Economy
EPA Fuel Mileage - City/Highway 26/37 mpg
Origin & Price
Origin United States of America
Base Retail Price (MSRP) n/a

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