Affichage des articles dont le libellé est Honda. Afficher tous les articles
Affichage des articles dont le libellé est Honda. Afficher tous les articles

New Honda Civic Concept to be Unwrapped at Detroit Show, Previews Production Model

mercredi 15 décembre 2010


What you see pictured above is an official rendering of the Honda Civic Concept, which will be revealed in the flesh at the upcoming 2011 North American International Auto Show (NAIAS) in January 2011. According to the Japanese automaker, the concept is more of a pre-production study that will preview the actual, ninth-generation 2012 Civic, which will go on-sale in North America in spring next year.

The illustration depicts a coupe model with possible styling influences from the European market Civic hatchback (front) and the North American Accord Coupe (profile). Honda did not release any specific details on the car, but we suspect that we'll learn more within the next couple of weeks, so stay tuned.



READ MORE - New Honda Civic Concept to be Unwrapped at Detroit Show, Previews Production Model

Pics Aplenty: Honda releases boatload of new CR-Z shots... in Europe

vendredi 18 juin 2010


2011 Euro-Spec Honda CR-Z – Click above for high-res image gallery

Honda has officially flooded the interwebs with a wave of photos of the Euro-spec CR-Z Hybrid. Surprisingly enough, our cousins across The Pond will be able to get their hatchback hybrid as a 2+2 like their JDM counterparts, meaning the car will have two small back seats just for children, briefcases or other cargo. When not in use, the rear thrones fold down to make room for your most recent Ikea purchase.



Other than those rear seats, the car doesn't appear to differ significantly from the version we'll see Stateside. Power still comes from a 1.5-liter four-cylinder engine mated to a small electric motor with around 122 horses combined and 124 lb-ft of torque.

The European CR-Z will also feature the same three-mode efficiency system we're likely to see in our version. Drivers will be able to choose between Sport, Normal and Economy modes, all accessible via the push of a button. Each will offer different levels of electric motor assist and will also monkey around with the electric power-steering to provide a different driving feel depending on the mode. Hit the jump for the full press release, and wade through the massive gallery of high-res images below.
[Source: Honda]
READ MORE - Pics Aplenty: Honda releases boatload of new CR-Z shots... in Europe

Deep Dive: Getting intimate with the 2010 Honda CR-Z's powertrain



When the 2011 Honda CR-Z hits the streets this Fall, it will feature the latest iteration of the company's Integrated Motor Assist (IMA) mild hybrid system. The basic concept of IMA hasn't changed since the original Insight debuted in 1999, but it has been refined to improve performance and efficiency while reducing overall cost.



There's a wide spectrum of hybrids in the market, ranging from low-end, belted-alternator-starter (BAS) mild hybrids to the full-blown power-split strong hybrids at the top. The latter category includes systems from Toyota, Ford and General Motors (two-mode), while Honda's IMA provides a healthy boost in overall efficiency compared to a conventional powertrain, but falls well short of the best power-splits. Read on to learn more about the IMA system and how it's implemented in the CR-Z.
 Architecture

The basic architecture of IMA consists of a compact electric motor sandwiched between the internal combustion engine and transmission. A nickel metal hydride battery pack is used for storing the energy captured through regenerative braking. The final component is the power electronics module that incorporates the inverter, battery management system and motor control.

When the first generation Insight launched in 1999, it was only available with a manual gearbox until a continuously variable transmission (CVT) was added in 2001. The manual was discontinued around 2003 and all subsequent Insight and Civic hybrids were only available with the CVT. The short-lived Accord Hybrid used a conventional step-ratio five-speed automatic. The introduction of the CR-Z marks the return of a manual transmission, this time with six forward ratios, with a CVT as an option.

Motor

The motor is integrated into a 61 millimeter wide case that's bolted directly to the output face of the engine. From the beginning, IMA has used a permanent magnet AC synchronous motor which is both compact and efficient. The stator is fixed to the internal perimeter of the case while the rotor is bolted to the output face of the crankshaft. The clutch for the manual transmission or the input plate for the CVT are bolted to the output side of the rotor.



The electric current in the adjacent coils of the stator is flowing in opposite directions, creating reverse magnetic fields. The motor control causes the current direction (and thus the field) to switch back and forth, which causes the rotor to move in response. The switching rate controls the motor speed and as the rotor spins, it applies drive torque to the transmission providing an electrical boost.

Since the motor is hard-coupled to the engine, there is no mechanism to shut-off and de-couple the engine and drive on electric power alone the way strong hybrids like those from Toyota and Ford. Starting several years ago with the Civic Hybrid, Honda added the ability to shut off fuel flow and close the valves with the VTEC variable valve timing system when cruising at low speeds. This allows the car to motor along on just electricity. However, the hard-coupling means that the crankshaft is still turning and the pistons are pumping. The result is more drag than you would find in a strong hybrid. Because of the sportier nature of the CR-Z, the VTEC system has been used to increase power rather than boost efficiency, so it can't motor along on electrons alone.

At 13 horsepower and 58 pound-feet of torque, the motor (which is shared with the Insight) is adequate for providing a noticeable boost in performance, but not really sufficient to propel the CR-Z on its own for any significant time or distance. However, the beauty of an electric motor is that it typically produces maximum torque at zero speed and stays at that peak before dropping off, making it ideal for boosting off-the-line performance without sacrificing fuel consumption.



Engine

While Honda's inline-four cylinder engines are highly regarded for smooth and efficient operation, low-end torque has rarely been considered a strong suit. This is certainly true of the 1.5-liter unit in the CR-Z with its 113 hp and 107 lb-ft peak torque, especially since that peak occurs at a fairly lofty 4,800 rpm. At 1,000 rpm, the engine is producing barely 80 lb-ft. The addition of IMA has allowed powertrain engineers to fatten up the bottom end of the net torque curve so that it produces 128 lb-ft of torque between 1,000 and 1,750 rpm on the six-speed manual-equipped model. On the flip side, the CR-Z with the CVT is limited to 123 lb-ft of torque. Regardless of the transmission choice, total combined peak power of the engine and motor is 122 hp at 6,000 rpm.

In addition to providing a torque boost during acceleration, the IMA motor is also used to start the engine when you twist the ignition as well as re-starting it after an idle-stop. Generally, any time the car comes to a stop, the engine will shut-off to conserve fuel and cut emissions. However, if the battery state of charge is too low or the electrical demands are too high (when driving with the headlights on or with the air-conditioning turned up) the engine won't be shut off. On the manual transmission CR-Z, the engine is only halted if the car is stopped and the transmission is in neutral. When the clutch pedal is pressed or the brake released, the engine automatically re-starts.

Regenerative Braking

Like other hybrid systems, applying a drive torque to the rotor turns the motor into a generator. During deceleration, the motor is used to recharge the battery and slow the vehicle, negating the need for the brakes to be used as much. The low cost nature of IMA hybrids means that Honda doesn't incorporated fancy brake-by-wire systems to blend friction and regenerative braking. Instead, the regenerative braking is overlaid on the friction brakes and then gently ramped out at low speeds. Compared to the Civic Hybrid, which exhibits a distinct loss of deceleration at about seven mph as the regenerative braking is switched off, the Insight and CR-Z have a much more gradual phase out making the transition almost imperceptible.



Battery

The key to any hybrid, whether it's a mild or strong system, is the energy storage system. Like every other system on the road, the CR-Z uses an electrochemical battery; in this case, a nickel metal hydride unit. The 100.8 volt unit consists of 84 "D-sized" cells arranged in seven modules of 12 cells each. It has a total capacity of 580 watt-hours, a bit less than half the size of most strong hybrids. Like the motor, the guts of the battery pack in the CR-Z are basically carried over from the Insight. The most notable change for the battery is the air cooling system which has been upgraded to improve its efficiency. The cell temperatures are closely monitored and controlled closer to the optimum operating temperature.

Batteries have a limited temperature range where they can provide optimal performance both for charge and discharge. The new cooling system is better able to manage the battery, especially at higher ambient temperatures which improves the ability to recapture and release energy when it's hot. Tighter control of the temperature also improves the durability of the battery pack.



Sport and Econ modes

In keeping with the CR-Z's mission of being a sporty hybrid, Honda has also added a driver selectable sport mode in addition to the Normal and Econ modes found in the new Insight. The Econ mode filters the driver commands and slows down the throttle response to smooth out acceleration and improve efficiency. The new Sport mode does the opposite, cajoling the CR-Z to life. Both the manual and CVT versions receive reduced steering assist and increased throttle response in Sport mode, while the CVT chooses a lower gear ratio range for higher engine speeds and more available power. With the manual transmission, the system monitors the accelerator pedal position and if the driver applies the gas beyond a certain rate, the IMA will provide full motor power immediately rather than ramping it up.

Given the limited hardware capability of the IMA system, Honda has managed to do quite a bit with it. While Toyota arguably created the first performance-oriented hybrid systems with the Lexus GS450h and LS600h, Honda is the first to create a dedicated platform and body that is overtly sporty. The CR-Z is by no means a speed demon, as you've read in our driving impressions, but it certainly feels much stronger than the Insight.

Fans of the original CRX of the late-80s may complain that the hybrid CR-Z can't match the 51 mpg combined rating of the old HF. However, it's also important to remember that the way fuel economy sticker values are computed has changed several times in the last 25 years. The EPA estimates that under the current procedures the CRX HF would have been rated at 43 mpg. The CVT version of the CR-Z is rated at 37 mpg combined which is lower than the CRX but the new car is considerably larger and heavier. The CRX would never meet current emissions or crash safety standards and it's also considerably slower than the modern car. In almost every way, the CR-Z is a much better car. But is it really a better drive? Find out here.
source by autoblogge
READ MORE - Deep Dive: Getting intimate with the 2010 Honda CR-Z's powertrain

First Drive: 2011 Honda CR-Z


2011 Honda CR-Z – Click above for high-res image gallery

Let's get this out of the way right now: the 2011 Honda CR-Z is not a CRX redux. To compare the two – no matter how much Honda may want to – is to misunderstand the former and besmirch the latter.



No, the hybrid CR-Z is an entirely different beast. Despite its three-door shape and two-seat configuration, it has about as much in common with the O.G. hatch as a big-screen remake of your favorite childhood TV show. The basic components are there, but the whole concept has been throttled to within an inch of its life with high-tech gadgetry, odd casting decisions and a questionable demographic.

But to Honda's credit, its rhetorical comparisons to the CRX have died down considerably since the CR-Z debuted in concept form and then progressed into a production model. Honda may have recognized after a lukewarm introduction outside the U.S. that glomming onto nostalgia will only get you so far (see: Dodge Challenger and Chevrolet Camaro). And to make something special – a vehicle that transcends the emotional baggage of its predecessor – you've got to evolve the concept and avoid relying on rose-tinted sentimentality.

To an extent, that's exactly what Honda has created. It hasn't built another hot hatch – the lightweight, K20-powered three-door enthusiasts crave – and instead it has attempted to meld the technology of the moment into a greenified competitor to the Mini Cooper. Think of it as the rogue lovechild of the original and current Insight, with a few sporting genes spliced into its DNA. But can a hybrid hatch be an entertaining steer? We took to California's twisties and clipped a few cones to find out.
If you were completely smitten by the CR-Z concept from the 2007 Tokyo Motor Show, the retail model may leave you a bit cold. Viewed side-by-side, the basic elements are there – high hatch, wedge shape, massive snout – but as with so many designs rotating on pedestals, everything's been watered down in the production process.

The deeply recessed grille and its center mounted "H" have been dispatched for a more pedestrian-friendly nose, while the blistered fenders, glass roof and aggressive haunches have all been relegated to the designer's trash bin. We won't call it neutered, nor will we result to the roller-skate cliche, but the CR-Z's 16-inch wheels (the only hoops available) and higher ride height have laid to waste the concept's edgy aggressiveness. And the first time a state-mandated front license plate is fitted, crouching Bugs Bunny references won't be far behind.



On the positive side, the blacked-out A- and B-pillars combined with the highly contoured windshield and greenhouse provide a pleasant wrap-around effect, while the high, split-glass hatch and triangular taillamps lend the CR-Z a more purposeful stance. The visibility afforded by the thinner A-pillars – something that's largely absent on modern vehicles – is a breath of fresh air, but on the flip side, the tall hatch and massive C-pillars make lane-changes a double- then triple-check affair.

Viewed as a whole (and if you hadn't seen the concept), it's a smart, youthful design with dozens of subtle stylistic elements that catch your eye over time. The only thing that's obviously missing is a visible exhaust outlet – something akin to the integrated exhaust tips on the Euro-market Civic would've been a nice touch.



The interior does a better job of tipping you off to the CR-Z's sporting pretenses, beginning with a pair of sufficiently bolstered seats and a small diameter steering wheel. All the controls are canted towards the driver, including the optional sat-nav, standard climate controls and drive mode selectors. The dash doesn't extend as far forward as we would have expected given the steeply raked windshield, nor does it completely encompass the occupants (note the odd cliff-face on the passenger side of the dash).

Mercifully, Honda has decided to ditch the Civic's two-tiered instrument panel for a center-mounted pseudo-3D tach with a technicolor digital speedo mounted in the middle. Battery and charge status, shift indicator, fuel level and real-time consumption flank the sides and look both futuristic and slightly half-baked. If you must, think of it as a low-rent version of the Ferrari 458 Italia's driver command center, complete with a user-customizable Multi-Information Display for standard trip readings, along with an Integrated Motor Assist (IMA) flow indicator, "Eco Guide and Eco Scoring" and exterior temperature reading.



Fit and finish is on par with anything from Honda in the $20,000-25,000 segment, with soft-touch materials lining the major touch points and an interesting vacuum-formed metal coating the door handles (an industry first). The rear cargo area was obviously designed with kid seats in mind for the European and Japanese market, but in the U.S. we get a pair of recessed, carpeted plastic trays in their stead. The upright panel can be folded down to expand the standard 25.1 cubic feet of cargo space, although the only way to fold or snap it into place is to move the front seat forward and reach through the door opening. Thankfully, it's a single-handed affair.

With all the techno-tidbits available inside (along with standard USB audio and a 12V power source), oddly, our favorite interior feature came in the form of a configurable cargo cover. You can mount the vinyl overlay in three different ways to either completely obscure the cargo area or leave it open for luggage, golf bags or small bodies. But the third setup – humorously dubbed "Secret Mode" – creates a small parcel area at the very end of the hatch to hold smaller items (grocery bags, laptop and camera cases) so they won't shuffle around during spirited sprints. Speaking of which...



If you're not already aware, the CR-Z's roots are based on the new-for-2010 Insight hatch. You can groan now if you wish, but take solace in the fact that Honda has managed to shorten the wheelbase to 95.8 inches, widen the track to 59.6 inches in front and 59.1 inches in the rear, with a total length of 160.6 inches. MacPherson struts work in concert with 18-mm front and rear stabilizer bars, and the whole setup has been fitted to a suitably taut chassis. The bad news: We're stuck with a torsion-beam suspension in the rear. The worse news: the curb weight comes in between 2,637 and 2,707 pounds depending on the transmission and equipment levels. For reference, the four-passenger, five-door Insight tips the scales at 2,734 pounds, which isn't much difference at all.

As you'd expect, Honda's focus lies on the CR-Z's Integrated Motor Assist hybrid system and its 1.5-liter i-VTEC four-cylinder pulled from the Fit. In the five-door runabout, the four-pot is good for 117 horsepower and 106 pound-feet of torque, but combined with the IMA system's Ni-Mh battery and brushless DC motor, Honda rates the CR-Z with the six-speed manual at 122 hp at 6,000 RPM and 128 lb-ft of torque from a deceivingly shallow 1,000 to 1,750 RPM. Honda says the electric motor is good for 13 hp and 58 lb-ft of twist on its own, so we're not entirely sure how the maths work out on that. We've left it to our engineering-savvy Mr. Abuelsamid to parse out the details, so let's get to the driving.



Judged by the stats alone, we started up the CR-Z with more than mild trepidation. In the Fit, the 1.5-liter isn't exactly an inspired engine and sadly, that hasn't changed in this application. The engine note is more hotel-grade Oreck than the manic, high-revving Hondas of yore, and as you move up through the rev-range, the wasps under the hood get angrier but fail to deliver a sting.

With the traction control switched off, the IMA delivers just enough torque to spin the tires when you launch around 3,000 RPM. Acceleration through the first two gears is on the high-side of acceptable as the four-pot strains towards its 6,500 RPM redline, but by the time you reach third, most of the steam has escaped the engine bay. Our best guesstimate on a 0-60 mph time is somewhere in the 10-second range. Hardly stirring, but not unexpected.

However, off-the-line performance isn't the CR-Z's forte. If Honda's "Hybrid Cafe Racer" line is to be believed, this hatch's true calling is in the canyons. And here, a faint light shines through.



In Normal and Eco mode, the CR-Z trundles along as you'd expect; a lazy commuter focused on efficiency. However, press the Sport button and the steering and throttle tighten. Inputs are more direct as you crank the quick ratio steering (2.5 turns lock-to-lock) and the shifter effortlessly slips through the gears. The six-speed manual tranny is slightly notchier than other Honda 'boxes, but it inspires you to row up and down the ratios to find the meat of the powerband. Lay into the throttle in third or fourth and there's more noise than motivation, but when the first corner appears, the brakes haul down the CR-Z at a decent clip. On the road, brake fade remained absent, but during a few hot laps around a makeshift autocross course, pedal feel got progressively mushier as we pushed harder and braked later, particularly when attempting to stop in a cordoned-off cone box.

Steering is typical Honda: direct, if slightly overboosted. Initial turn-in and mild mid-corner corrections were encouraging, as is the additional weight of the rear-mounted battery pack, allowing the CR-Z to rotate quicker than other short-wheelbase three-doors we've sampled. That additional pounds and 60:40 weight split inspired confidence through high-speed sweepers, but the downside is a fair amount of body roll through trickier, twistier bits and a penchant for understeer without a good flick of the wheel or a fair amount of trail-braking.



We only had a brief stint in a CVT-equipped model, and the seamlessness of the start-stop system in the manual version was replaced with a more abrupt shudder when switching back on from a stop – exactly as we've experienced on the Insight. As with most CVTs, the "elastic band" sensation is there, albeit slightly more refined, holding the revs at around 6,000 rpm when matting the throttle and allowing you to shift through seven faux ratios when the mood strikes you. As you'd expect, the manual is easily the more sporting setup, but Honda estimates somewhere between 70 and 75 percent of all CR-Z's will be equipped with the quasi-automatic. Which brings up the obvious question: Who's the CR-Z for?

If we were a cynical bunch, we'd assume it's yet another vehicle designed to improve overall CAFE ratings. And with fuel economy ratings of 36/39 mpg city/highway with the CVT and 31/37 on the manual model, it's certainly going to help. But that's too easy. If you believe Honda, it's estimating that the average buyer will be a style and eco-conscious consumer between 25 and 35, smitten by the small size and blue Hybrid badge on the boot. That we can almost buy, particularly given that Honda will be pricing the base model under $20,000 and the fully-kitted EX with Navi will slide in under $24,000 when it goes on sale August 24. But is it an enthusiast's vehicle? Hardly. With more power, bigger brakes and a more sophisticated suspension (we're sure Hasport is working on a engine mount kit as you read this), this could've been the CRX for the 21st century. Instead, it's a capable fuel miser that can muster some sport when summoned. Unsurprising, but disappointing nonetheless.
 cource by autoblogger
READ MORE - First Drive: 2011 Honda CR-Z

Family Truckster Reborn: 2011 Honda Odyssey Revealed

jeudi 17 juin 2010

Just under an hour ago, the 2011 Honda Odyssey was revealed to journalists via an online video presentation.

Earlier this afternoon, Honda engineers explained the key features of the latest Odyssey, using the word "intuitive" to describe the changes that differentiate this model from its forebear. Few details were revealed about the Odyssey's driving dynamics in the presentation, but we know the Odyssey will retain a 3.5-liter V-6 engine, and achieve similar EPA fuel economy numbers to the current model.




The engineers' presentation instead focused most on interior features, presumably for potential buyers with young children. Innovative features to the 2011 Odyssey will include a center dash-mounted "cool box," 15 (!) cupholders, and a bevy of interior electronic gadgetry and places to store accessories like iPods and cell phones. The Odyssey has grown in nearly all dimensions to make all three rows of seating more accommodating.

The 2011 Odyssey seems a careful evolution of the last two generations of sliding-door Odysseys -- don't forget the first Odyssey of 1994 with traditional doors. What do you think? Does the latest design strike a chord with your inner minivan fan?


Source: Honda
READ MORE - Family Truckster Reborn: 2011 Honda Odyssey Revealed