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Exhaust System

A high-efficiency exhaust system and a high-density catalytic converter help the CR-V engine meet stringent LEV II-ULEV emissions certifications in California and Federal Tier 2 Bin 5. Exhaust gases pass through a low heat-mass/dual-wall stainless steel manifold as they now exit the "downstream" side of the engine via a new double-walled pipe that also helps limit heat loss. The combination of higher relative temperatures and a more direct path to the catalytic converter yields quicker light-off, which contributes to lower levels of hydrocarbon and NOx emissions.

Maintenance Minder

The CR-V's vehicle maintenance schedule is calculated by the Maintenance Minder system. The Maintenance Minder system automatically indicates when to have standard service performed based on actual driving conditions (tracked by the ECU) and minimizes the guesswork related to whether the vehicle is being used in standard or severe use conditions for maintenance interval purposes. The display indicates when to change the oil, air cleaner, transmission fluid, spark plugs or coolant, as well as when to rotate the tires. As calculated by the Maintenance Minder system, the CR-V has an engine tune-up interval of 100,000 miles or more. (See Interior section for more details on the Maintenance Minder display.)

5-Speed Automatic Transmission

The CR-V comes standard with an electronically controlled 5-speed automatic transmission. The 5-speed automatic transmission uses a wide overall ratio that maximizes acceleration in gears one through four and optimizes fuel economy in its overdrive fifth gear. The computer controlled direct control transmission provides amazingly smooth shifts. The direct control coupled with gear ratios that are closely matched to the output of the engine help extract more power from the engine at just the right time to provide overall vehicle performance competitive to vehicles with 4-speed automatic transmissions and more horsepower.

The 5-speed automatic transmission uses a variety of technologies to provide smoother shifting as well as reduced friction for enhanced efficiency. Those technologies include a low-friction clutch and a special super-thin torque converter. The thin torque converter results in a compact transmission unit. Other space-saving measures include a double-row idle gear and a tightly packaged second-gear clutch.

To improve powertrain smoothness and reduce gear "hunting" on steep grades, the 5-speed automatic transmission is also equipped with a standard Grade Logic Control system. Using sensors that monitor throttle position, vehicle speed, and acceleration/deceleration and then comparing these inputs with a map stored in the transmission computer, the system is able to determine when the vehicle is on an incline and adjust the shift schedule for improved climbing power or downhill engine braking.

To improve fuel economy while maintaining a high level of drivability, the 5-speed automatic transmission includes an active lockup torque converter. With the precise control afforded by a linear solenoid, the system expands the speed and throttle setting range in which lockup can be engaged (closely emulating the benefits of a manual transmission design).

CR-V Automatic Transmission Gear Ratios

Gear

2007 CR-V 2006 CR-V
1 2.786 2.652
2 1.614 1.517
3 1.082 1.037
4 0.773 0.738
5 0.566 0.566
Final Drive Ratio 4.50 4.438

Real Time(TM) 4WD

The CR-V's 4-wheel drive system is designed to best match the majority of driving situations that SUV's realistically encounter. The fully automatic Real Time 4WD system (available) enhances the CR-V's all-weather and light duty off-road capabilities when driving in rain, snow, dirt roads and sandy conditions - without the significant weight, fuel economy and handling performance drawbacks of a conventional four-wheel-drive system. For 2007, enhancements have been made to the system for improved performance by optimizing materials and construction, resulting in 20 percent more torque transfer to the rear wheels.

The CR-V's Real Time 4WD system sends power only to the rear wheels when there is insufficient traction for the front-wheel-drive system. The system consists of the conventional front-wheel-drive system, a compact transfer case that distributes torque to a propeller shaft running the length of the vehicle, a dual-pump system with a multi-plate clutch, a cam unit mechanism, the rear differential, and left and right rear-wheel driveshafts.

The core of the system is the dual-pump unit. It consists of two hydraulic pumps, one driven by the front wheels via the propeller shaft and one driven by the rear wheels via the rear differential. A hydraulically actuated, multi-plate clutch, similar to the clutches used in Honda automatic transmissions, connects the propeller shaft to the rear differential.

When the CR-V is operating with the front and rear wheels turning at the same speed, for example on dry pavement, the front and rear hydraulic pumps operate at the same rate. Hydraulic fluid circulates between the two pumps; however, no pressure is generated. In effect, the fluid pressure created by the front pump is equalized by the rear pump.
If the front wheels begin to turn faster than the rear wheels, as would be the case if they were spinning on snow or ice, the two hydraulic pumps would turn at a different rate and hydraulic pressure proportional to the difference in their speeds of rotation would be generated. The resulting hydraulic pressure opens a valve body and feeds pressure to the multi-plate clutch, which engages the front propeller shaft to the rear differential. The rear differential then feeds the drive torque to the right and left rear wheels.

To provide a quick torque transfer response time for transparent 4-wheel drive operation to the driver, the multi-plate clutch is supplemented by a one-way ball cam unit mechanism. The cam unit mechanism consists of two plates separated by six ball cams (large bearings) that move within ramped grooves. When a slight difference in rotation speed exists between the rear wheels and front wheels when driving forward, the ball cams move within the ramped grooves and create pressure that instantly begins the engagement of the main clutch (prior to the build-up of sufficient hydraulic pressure). By engaging the main clutch at a sufficient force even before the hydraulic pressure is generated by the two hydraulic pumps, the driving torque is transferred without a hint of time lag.

Overall system operation is completely automatic; no electronics or driver action is involved. The greater the degree of front-wheel slippage, the greater the amount of torque fed to the rear wheels. Real Time(TM) 4WD is also low maintenance. The Maintenance Minder system will indicate that the dual pump


All-New 2007 Honda CR-V Goes on Sale

TORRANCE, Calif. 09/28/2006 --

American Honda Motor Co., Inc., announced the all-new 2007 Honda CR-V is debuting today at dealerships nationwide. Prices for the 2007 Honda CR-V range from $20,600 for the CR-V LX model to $26,000 for the CR-V 4-WD EX-L model. Honda's Satellite-Linked Navigation System with Voice Recognition(TM) and rearview camera is available as a $2,000 factory-installed option.

The all-new CR-V features a sophisticated interior design that delivers near-luxury style along with improved refinement and a more powerful and efficient 166-horsepower, 2.4-liter, 4 cylinder engine. As part of Honda's industry leading "Safety for Everyone" initiative, all Honda light trucks, including the CR-V, are equipped with a Vehicle Stability Assist(TM) (VSA(TM)) system and a comprehensive list of standard safety features, including side curtain airbags with roll-over sensors, front side airbags with Occupant Position Detection System and anti-lock braking system. The 2007 CR-V features Honda's innovative Advanced Compatibility Engineering(TM) (ACE(R)) Body Structure for enhanced frontal collision safety.

New features on 2007 CR-V models include:

* Distinctive, upscale, dynamic and versatile styling
* Standard safety equipment includes ACE Body Structure and Active Front Head Restraints
* Interior design and amenities deliver near-luxury style and refinement
* New body and chassis designs result in smoother, more agile performance and a quieter cabin
* 10 more horsepower (166 hp) and standard 5-speed automatic transmission
* Improved ingress/egress with optimized door designs and 1.3 inch lower step-in height than the previous generation CR-V
* Dual-deck cargo shelf (available)
* Available Honda Satellite-Linked Navigation System with Voice Recognition

Destination and Handling is an additional $595.

Worldwide, the CR-V is built in seven countries at eight factories, and for the first time it will be assembled using domestic and globally-sourced parts in North America at Honda of America Manufacturing in the East Liberty Plant (Ohio). A truly global product for Honda, the CR-V is sold in 160 countries in North America, Europe, Asia, South America and Africa.

2007 Honda CR-V #3