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Showing posts with label Knowledge car. Show all posts
Showing posts with label Knowledge car. Show all posts

2012-12-16

News Reviews Videos Photos Car Advice Car of the Year New Cars Buy a Car Sell a Car My Shortlist Drive Car of the Year: Toyota 86 GT

More great news for the 86, the GT has been awarded Drive's Car of the Year for 2012! 




If the automotive landscape of 2012 is remembered for one thing, it will be that the thrill of driving is alive and kicking.
The point was driven home by Drive's Car of the Year being awarded to the Toyota 86 GT, an unashamedly focused sports car, guaranteed to put a smile on the dial of those lucky enough to find themselves behind its steering wheel.
Anyone who thinks that choosing a sports car as the year's best is elitist should look at the value-for-money equation.
With a list price of $29,990 the 86 costs less than many mainstream family cars, including the cheapest version of Toyota's own four-cylinder Camry. In a global economy struggling to shake off the GFC blues, the combination of value and hedonistic driving enjoyment cannot be ignored.

The Toyota 86 coupe was, of course, developed in conjunction with Subaru. That company not only supplies the horizontally-opposed engine and builds the car in its own plant but also has the mechanically identical – give or take some minor differences in suspension tuning and tyre size – BRZ.
Given the vast similarities between the 86 and BRZ, the latter was unlucky not to win the award but that's the way our Car of the Year awards work. The pair were both included in the Performance Car Under $60,000 category which the 86 won, largely because it is available at a cheaper price thanks to a reduced standard equipment list on the GT version.
Only a category winner can go on to take the major prize, so the BRZ missed out.
Take it from us though, the Subaru is every bit as thrilling to drive and those who want the BRZ's higher equipment levels, do the sums and buy it will not be disappointed.
The Toyota won its category by scoring heavily in each judging criteria. Its engine might not have the outright horsepower of some performance cars, but it provides the perfect amount to exploit the 86's nimble, rear-drive chassis.
It can be driven quietly and comfortably as a commuter car, albeit one with a stiffer than normal ride. On the track it can be easily provoked into lurid tail slides with its electronic stability control switched off, or remain commendably stable with it left on.
Equipment levels are not luxurious, but are more than adequate given the design goal of a low price and low weight for maximum performance. In terms of practicality, the rear seat is good for short trips (or shorter adults) and the folding rear seat means larger loads than a shallow boot would otherwise tolerate can be accommodated.
Five-star NCAP crash-worthiness indicates a safe structure, as does a full complement of seven airbags.
The Toyota 86 held its own over five days of gruelling driving and judging covering every available road condition.
Every car was taken around a road loop that distilled a wide variety of real-world conditions into something accessible for the judging panel, with its combined total of many decades of road-testing experience.
They included 100km/h highway driving, urban traffic conditions with suburban streets, traffic lights and school zones and pot-holed, low-speed, country roads.
The race track component wasn't just a chance to cut high-speed laps. It gave a safe and controlled environment to explore steering and handling limits, but also included disciplines such as a swerve-and-recover lane change exercise, a slalom between traffic cones and a hard braking stop from 100km/h.
All the time, judges were noting the minute details of each car's equipment levels, comfort, build quality, noise levels and all the other ponderables that determine category and overall winners. From all that, the 86 deserved to come up trumps.
The final vote between category winners to determine the overall winner was not a unanimous win for the 86 GT, however. Mazda's CX-5 received three of the nine judges' votes thanks largely to its brilliant diesel engine, sparkling dynamics and low fuel use.
The other two finalists that were debated heavily were the Kia Sorento SLi and Toyota Camry Hybrid H. Each were standouts and rounded out what was arguably the most impressive quartet of finalists for the coveted overall gong.
The Mercedes-Benz C250 CDI that took out last year's Car of the Year and again won the Best Luxury Car Under $80,000 category in 2012 failed to make it to the final four – just.
Speaking of votes, there were a few interesting statistics to come out of the overall testing. For instance, eight of the category winners were carryover champions from last year, indicating that on the whole, a good car can remain difficult to beat.
The five new category winners were the Kia Sorento, Porsche 911, Toyota Camry Hybrid, Mazda CX-5 and, of course, the Toyota 86.
The Camry Hybrid's win as Best Family Car made it the first hybrid champion, and also meant that along with Volkswagen and Mazda, Toyota had two category winners.
In technical terms, nine of the 13 category winners had four-cylinder engines, nine had turbocharged engines and seven were either diesel or hybrid powered.
The spread of dollar value for the 13 winners could hardly have been greater. They ranged from the $18,990 VW Polo 77TSI to the $262,600 Porsche 911 Carrera S.
And last, the 86 GT was the first Toyota to win the Car of the Year gong in the award's seven-year history, and only the second non-German one at that.
So take a bow Toyota 86. You were the right car at the right time, and an almost perfectly executed sports car at that.



2012-12-13

Mercedes-Benz TV: AMG premieres at the LA auto show 2012


Mercedes-Benz TV: AMG premieres at the LA auto show 2012




Two AMG premieres took place at this year's Auto Show in the Golden State. The SLS AMG Black Series and the GL 63 AMG were presented to the public. Mercedes-Benz reporter Torie travelled to Los Angeles to find out all of the important information for you.

Mercedes-Benz 
As of today, we are more than 9 million Mercedes-Benz fans on our global Facebook page. To thank our fans, we have prepared a little something. Finnish Anssi Määttä created a light-artwork video with the CLS Shooting Brake in Helsinki. We hope you enjoy it as well!  

Check it out here: https://vimeo.com/54705499

2011-02-26

3 Types of Hybrid Systems ?

Auto Review
The following three major types of hybrid systems are being used in the hybrid vehicles currently on the market:

1) SERIES HYBRID SYSTEM
The engine drives a generator, and an electric motor uses this generated electricity to drive the wheels. This is called a series hybrid system because the power flows to the wheels in series, i.e., the engine power and the motor power are in series. A series hybrid system can run a small-output engine in the efficient operating region relatively steadily, generate and supply electricity to the electric motor and efficiently charge the battery. It has two motorsa generator (which has the same structure as an electric motor) and an electric motor. This system is being used in the Coaster Hybrid.Auto Review.

2) PARALLEL HYBRID SYSTEM 
In a parallel hybrid system, both the engine and the electric motor drive the wheels, and the drive power from these two sources can be utilized according to the prevailing conditions. This is called a parallel hybrid system because the power flows to the wheels in parallel. In this system, the battery is charged by switching the electric motor to act as a generator, and the electricity from the battery is used to drive the wheels. Although it has a simple structure, the parallel hybrid system cannot drive the wheels from the electric motor while simultaneously charging the battery since the system has only one motor.Auto Review.

3) SERIES/PARALLEL HYBRID SYSTEM  This system combines the series hybrid system with the parallel hybrid system in order to maximize the benefits of both systems. It has two motors, and depending on the driving conditions, uses only the electric motor or the driving power from both the electric motor and the engine, in order to achieve the highest efficiency level. Furthermore, when necessary, the system drives the wheels while simultaneously generating electricity using a generator. This is the system used in the Prius and the Estima Hybrid. Auto Review.

Hybrid System Operations ?

Auto Review 
Status 1: Starting off (Taking advantage of the electric motors\\\' low-speed torque at start-off)
When the car starts off, Hybrid system uses only the electric motors, powered by the battery, while the gas/petrol engine remains shut off. A gas/petrol engine cannot produce high torque in the low r.p.m. range, whereas electric motors can - delivering a very responsive and smooth start. When the ignition is initially turned on, the gas/petrol engine is turned on and kept running until it is warmed up.

Status 2: Low/Mid-speed Driving (Energy-efficient motor-driven running)
A gas/petrol engine is not energy efficient in running a car in the low/mid-speed range. On the other hand, electric motors are energy efficient in running a car in the low/mid-speed range. Therefore, Hybrid system uses the electric energy stored in its battery to run the car on the electric motors in the low/mid-speed range. If the battery charge level is low, the gas/petrol engine is used to turn the generator to supply power to the electric motors.

Status 3: Cruising (Energy-efficient driving, using the gas/petrol engine as the main power source) Hybrid system uses the gas/petrol engine in the speed range in which it operates with good energy efficiency. The power produced by the gas/petrol engine is used to drive the wheels directly, and depending on the driving conditions, part of the power is distributed to the generator. Power produced by the generator is used to feed the electric motors, to supplement the gas/petrol engine. By making use of the engine/motor dual powertrain, the energy produced by the gas/petrol engine is transferred to the road surface with minimal loss.
*If the battery charge level is low, the power output from the gas/petrol engine is increased to increase the amount of electricity generated to recharge the battery.

Status 4: Cruising/Recharging (Recharging the battery with surplus Energy)
Since Hybrid system operates the gas/petrol engine in its peak performance range, the gas/petrol engine may produce more power than is necessary to drive the car. In this case, the surplus power is converted to electric energy by the generator to be stored in the battery.

Status 5: Full Acceleration (Dual power for acceleration one class higher)
When strong acceleration is called for (e.g. for climbing a steep slope or overtaking) the power from the battery is supplied to the electric motors to supplement driving power. By combining the power from the gas/petrol engine and the electric motors, Hybrid system delivers power comparable to cars having one class larger engine displacement of one class higher.

Status 6: Deceleration/Regenerating Energy (Storing regenerated energy under deceleration in the battery)Under braking or when the accelerator is lifted, Hybrid system uses the kinetic energy of the car to let the wheels turn the electric motors, which function as regenerators. Energy that is normally lost as friction heat under deceleration is converted into electrical energy, which is recovered in the battery to be reused later.

Status 7: At Rest (Shutting down entire powertrain when car is at rest)
The gas/petrol engine, the electric motors and the generator are automatically shut down when the car comes to rest. No energy is wasted by idling.
*If the battery charge level is low, the gas/petrol engine is kept running to recharge it. In some cases, the gas/petrol engine may be turned on in conjunction with the air-conditioner switch operation.Auto Review.