Automotive Intelligence - the web for automotive professionals and car enthusiasts
Januar 12, 2010
This Week:
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The Detroit showcar Audi e-tron shows another variant of an electric vehicle developed by Audi
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MINI at the NAIAS Detroit 2010 -The joy of motoring has a future
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Production Version of 2011 Honda CR-Z Sport Hybrid Coupe Makes Official Debut
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Bentley Motors Showcases New Flagship Mulsanne And Series 51 Continental GTC At Detroit Motor Show
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2010 North American Car and Truck of the Year Winners Announced
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Production Version of 2011 Honda CR-Z Sport Hybrid Coupe Makes Official Debut
DETROIT - The all-new 2011 Honda CR-Z sport hybrid coupe, making its U.S. production debut at the North American International Auto Show in Detroit, introduces sleek styling and sporty handling to the hybrid segment, American Honda Motor Co., Inc., announced today. Set to go on sale late summer in the U.S., the CR-Z is powered by a 1.5-liter i-VTEC engine with Honda's compact and lightweight Integrated Motor Assist (IMA) hybrid-electric system. The two-passenger CR-Z introduces a new three-mode drive system that allows the driver to select between Sport, Econ (Economy) and Normal driving modes. |
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The CR-Z represents the sixth unique version of Honda's original IMA technology since the launch of the 2000 Insight, the first hybrid vehicle available in North America in December 1999. The foundation of the CR-Z's hybrid powertrain is a 4-cylinder, 16-valve, single overhead cam engine with "intelligent" Variable Valve Timing and Lift Electronic Control (i-VTEC) that receives additional power from the IMA system's DC brushless electric motor. The i-VTEC system controls the opening and closing of one intake valve per cylinder to enhance combustion at low RPMs. |
The 10-kilowatt electric motor assists in acceleration and also acts as a generator during braking or coasting to capture kinetic energy that recharges the 100-volt IMA nickel-metal hydride battery pack. The gasoline engine can automatically turn off during vehicle stops to improve efficiency.
The system delivers a combined peak output of 122 horsepower(2) at 6,000 rpm and 128 ft-lb. of torque(2) at 1,000 to 1,500 rpm (123 ft-lb. on CVT-equipped models). Preliminary fuel economy estimates are anticipated to result in a rating of 36 city/38 highway miles per gallon(3) on CVT-equipped models. Manual transmission models are anticipated to achieve an EPA-estimated fuel economy rating of 31 city/37 highway miles per gallon(3). The CR-Z is rated as an Advanced Technology Partial Zero Emissions Vehicle (AT-PZEV) in states that adhere to California Air Resource Board (CARB) ZEV standards (EPA Tier 2, Bin 2 in all states).
The standard six-speed manual transmission is engineered for optimal acceleration performance in gears one through five and for optimal fuel economy in sixth gear. When starting on steep inclines from a stop, hill start assist temporarily prevents the vehicle from rolling backwards during the moment between releasing the brake, depressing the throttle and releasing the clutch (for a duration of approximately 1.5 seconds). The available CVT provides the convenience of an automatic transmission with a seamless transition between minimum and maximum ratios, while also keeping the engine within an optimal RPM range for overall efficiency. To increase the performance potential of the CVT, paddle shifters located on the steering wheel allow the driver to manually simulate the stepped holding pattern. In Sport mode, the paddle shifters will hold and maintain a selected ratio.
The CR-Z's three-mode drive system allows the driver to select between individual modes of performance for Sport, Normal and Economy driving styles. The system is activated via three backlit buttons to the left of the steering wheel.
Photo: Honda
(11 Jan 2010)