2021.02.05.  8,420 reads Tucson Hybrid Test Drive, Best Fuel Economy?  Parse 14

2021.02.05. 8,420 reads Tucson Hybrid Test Drive, Best Fuel Economy? Parse 14

Accumulated fuel efficiency of 16.9km/l by driving on the Tucson Hybrid Highway! Why does this car have a 1.6 gasoline turbo GDi instead of a 1.6 liter gasoline multi-injection engine?

This content was produced through the invitation of Hyundai Motor Company’s test drive event and the provision of a test drive.
Most car consumers are interested in hybrid models. This is because the fuel economy is relatively high and it reduces the moral burden of vehicle operators even in environmental issues. Fuel economy was immediately linked to vehicle operating costs, so even so, who would have imagined that emissions issues would affect vehicle choices? This series of changes changed the car market in just five years.

2021 Tucson Hybrid

However, in many cases they are reluctant to purchase because of the high cost of purchase compared to gasoline models and relatively expensive parts such as electric motors, batteries, and regenerative braking brakes that fail. Of course, the cost issue will naturally be solved when hybrid vehicles are as popular as gasoline vehicles, but sales growth is not as fast as you might think. Therefore, car makers who are facing carbon-neutral report submissions are burning their throats.

The fuel economy of hybrid vehicles sold by Hyundai Motor Company over the past two years has gone a step further. The Avante Hybrid recorded an official fuel efficiency of 21 kilometers per liter and the Kona Hybrid reached 19 kilometers per liter, and the actual fuel economy is reported to be higher. if so What about Tucson with the latest hybrid powertrain?

Tucson NX4

Last fall, I rode a Tucson hybrid model for about two hours through a media test drive. Half of the course was a two-lane round-trip local road and half was a highway. Of course, 30 percent of them traveled slowly at 30 to 40 kilometers per hour, and in the rest of the section, they ran and accelerated at 90 kilometers per hour. The resulting section fuel economy was 16 kilometers per liter. It is close to the official fuel efficiency of 16.2km/l.

What changes will be needed to fuel the growing penetration of hybrid vehicles? The most realistic solution is to increase fuel economy.

Considering the size and weight of the vehicle and comparing it to a Japanese hybrid SUV of the same class, it is still uncomfortable personally. On the other hand, carbon dioxide emissions have been quite suppressed at 99 grams per kilometer. Presumably, it is the appearance that cares about the certification of low-emission vehicles.

Tucson Hybrid’s engine room (1.6 T-GDi + electric motor)

When I described these thoughts in the last content, there were many reactions that the expectation was excessive. The evidence is that it is 1Km higher compared to the Japanese hybrid SUV. But I can’t be satisfied here. This is because Toyota’s hybrid system, which was selected for comparison, is close to a textbook, but it is difficult to say that it is the latest technology.

The fuel economy in the first section of the trip is sometimes recorded as 20km/l.

If there are a lot of driving on the highway, could the fuel economy be higher? While preparing for this test drive, when looking at contents related to Tucson’s fuel economy, opinions that it exceeded 20 kilometers per liter stood out. However, this is a natural phenomenon because it is a relatively high level of electric motor intervention at the initial level after turning on the vehicle’s engine. However, as the driving time increases and the vehicle speed changes significantly, the rate of driving in the electric vehicle mode gradually decreases and the fuel economy in sections gradually decreases.

I would like to pass the official fuel economy in another way. It is’fuel economy after refueling’. In particular, the trip computer was initialized after the test drive was filled with fuel, which is equivalent to’accumulated fuel economy’. Measurements were made in a distance of about 50 kilometers between downtown Seoul and about 300 kilometers in total, about 250 kilometers from the northeast of Seoul to the beach in Yangyang, Gangwon-do.

I haven’t tried fuel-efficient driving separately while testing many cars, but this time it’s different. To get close to 20 kilometers per liter.

To this end, the so-called’balcon’, or’foot control’, which keeps the pressure of the foot on the accelerator pedal, was tried. This is a way to keep your current speed as high as possible while maintaining the lowest engine revs. Especially in the case of the Tucson Hybrid, it is a task that maximizes the operating time of the electric motor in EV mode instead of the gasoline engine.

However, it is not possible to drive more than 4 hours round trip this way. This time, I’ve been doing this for about an hour and a half, and it’s not enough to come out of my body, but it’s usually not difficult. In addition, driving the EV mode continuously on the highway may cause the driving speed to drop below 60 km/h.

Kona Hybrid’s engine room (1.6 MPi + electric motor)

There are a number of reasons why the fuel economy of the Tucson Hybrid is difficult to approach the 19 kilometers per liter of the Kona Hybrid, which is the lowest. Physically, the Tucson Hybrid is larger and has a taller body compared to the Kona. In fact, a car that is a crossover between a hatchback and an RV and an urban SUV differs greatly in air resistance. In addition, the weight of the vehicle is also different, and the difference between the engines on the two cars also plays a part.

The 1.6 liter gasoline engine installed in the Avante Hybrid and Kona Hybrid is a setting with slightly lowered power for hybrid use based on naturally aspirated MPi. The 1.6 gasoline engine on the Tucson Hybrid, on the other hand, uses a T-GDi with a maximum output of 180 hp and a maximum torque of 27 kg∙ m. It has a performance that makes driving uncomfortable even without an electric motor that produces up to 50 horsepower. If the Tucson Hybrid is equipped with a gasoline MPi engine with a maximum output of 105 horsepower, how will the driving feel of the secondary car change?

The empty vehicle weight of the Tucson Hybrid is 1590 kg, which is 165 kg heavier than the Kona Hybrid. Subtracting about 60 kilograms of weight difference between 1.6-liter turbo engine and naturally aspirated engine, the difference is 105 kilograms. At this level, even with a 1.6 naturally aspirated engine, it will not be a problem for driving. What’s more, if an electric motor that adds up to 50 horsepower in specifications is adequately assisted and the torque at low speeds is slightly higher. Of course, it is very likely that the vehicle’s acceleration and power on hills will drop significantly compared to the market’s expectations for SUVs.

In fact, hybrid vehicles sometimes lack torque at low speeds compared to gasoline turbo vehicles. This is because, unlike pure electric vehicles, the power of the electric motor operated in the low speed section is small. Because of this, it may not be able to provide the necessary power to escape from slippery muddy or sandy roads.

Let’s go back to the story of fuel economy driving. As mentioned earlier, in trying to get the most out of EV mode, the car’s speed can drop to 60 kilometers per hour. It is a nuisance for cars running at the highest speed on the highway. Of course, during fuel economy driving, I used the lowest lane. However, there were cases in which it was necessary to achieve speeds of 80 km/h or more within the tunnel. If the follow-up vehicle is stuck right behind you, you can’t help it.

When I arrived at Yangyang Beach by handling the accelerator pedal with the heinous’foot control’, the accumulated fuel efficiency of this car is 17km/l, which is higher than the official fuel efficiency of 16.2km/l. This is a meaningful increase in fuel economy, but since the process is unrealistic, further attempts seem meaningless.

Tucson hybrid

The fuel economy of the Tucson 1.6 gasoline turbo all-wheel drive model is 12 to 12.5 kilometers per liter, so the economy of the Tucson Hybrid seems to be high. However, as mentioned earlier, considering the price of the vehicle and the burdensome parts such as replacing the electric motor and battery, and repairing the regenerative brake before that, it is difficult to determine the TCO, or total cost of ownership, of the two vehicles.

4th generation Tucson rear (left) and front

This is something that automakers can suggest, but it is not legally binding, so there is no reason to disclose it yourself. For reference, the price of the Tucson Hybrid is between 2857 and 34,670,000 won, compared to the Tucson 1.6 gasoline turbo front-wheel drive model, which is between 2435 and 31.5 million won, which is less expensive than 3.12 million won and as much as 4.26 million won. However, considering the current level of electrification technology and sales volume, it is not an excessive price. In addition, the price difference between the two powertrains can be divided according to the driving conditions of the vehicle, which causes a choice obstacle for the actual purchaser who is worried between the two cars.

The Tucson Full Change NX4 hybrid vehicle measures 1865 millimeters in width and 1665 millimeters in height, and has an empty vehicle weight of 1590 kg.

Next, let’s look at the main features and typical convenience specifications of the Tucson NX4, that is, the 4th generation of Tucson. The characteristics of the current Tucson can be summarized in several ways, including the application of the Hyundai Motor Company’s 3rd generation platform, an enlarged body, and the interior exterior design reflecting Sensuous Sports. Looking at the size of the vehicle, the overall length of the new Tucson is 4630 millimeters, an increase of 150 millimeters compared to the previous one, and the wheelbase is 2755 millimeters, an increase of 85 millimeters compared to the previous one. The overall width is 1865 millimeters, which is 10 millimeters longer than the previous one, and the total height is 1665 millimeters, the same as before.

Front of the Tucson NX4

Looking at the changes in appearance, it features a front and rear design with a parametric jewel pattern grill and a triangular light architecture nicknamed’Angel’s Wings’ instead of the existing Flutic Sculpture 2 design. Next, looking at the side, the existing whirl house cladding was left as a heritage, and a triangular motif was added to it to add dynamism. In addition, triangular divisions were added to the front and rear doors, which seems to have become the basic design item of the brand after Avante CN7.

Side of Tucson 4th generation with triangulation applied (17-inch aerodynamic wheel applied)

Triangular design objects

The driving texture is remarkably heavier than the previous generation, which is due to the weight of the tolerant vehicle, which is about 40 kilograms heavy based on Tucson gasoline turbo front-wheel drive, but also plays a role in the characteristics of the newly applied third-generation midsize vehicle platform. Most of the wheelbase increased by the application of the 3rd generation platform was used to expand the second row habitability. Accordingly, the Tucson NX4’s second row knee space has been increased by 80 millimeters compared to the previous one. This shouldn’t be done based on the first row, but it is more than one span when considering the left and right side.

Tucson Hybrid’s second row knee space (177cm tall)

Changes in the interior of the Tucson can be found in the 10.25-inch open cluster with the eaves gone, the 10.25-inch display located down the dashboard, down to the button area, the full-touch center fascia UI, and the electronic shift buttons. In particular, the center fascia design, which looks like a vertical display, is the masterpiece.

Tucson’s open instrument cluster (left) Cockpit shape (middle) Crush pad and passenger space

Changes in the Tucson interior can be found not only in visual changes and redesigned UI applications in terms of ergonomics, but also in the invisible emotional UX. The representative one is the’emotional air conditioning system’. It integrates several existing air conditioning related functions to automatically maintain optimal indoor air quality. Also noteworthy is the’voice recognition complex control function’ applied to Tucson for the first time in Hyundai Motor Company. This allows the driver to simultaneously control the climate, seat and steering wheel with a single predefined command. In addition, Hyundai Digital Key, Hyundai CarPay, and K-To-Home are also available depending on the model and trim. Meanwhile, the after blow system applied to the Tucson diesel and gasoline turbo is missing from the hybrid.

A Tucson air conditioner with a first-row cold air and heated (left) diffuser and air cleaning function applied to the Tucson Inspiration Trim.

Tucson’s center console with SBW button transmission interface (left) Mobile phone wireless charging cradle (middle) Walk-in device switch for the assistant seat

Lastly, looking at the sales price of the Tucson Full Change Hybrid, this is 28.57 million won for modern, 30.73 million won for premium, and 34.67 million won for inspiration by trim based on 3.5 percent individual consumption tax. For reference, gasoline models are 2435 to 31.5 million won and diesel models are 2626 to 3346 million won. For more information on the design and interior convenience specifications of the 4th generation Tucson, the NX4, please refer to my article linked below.

-The vehicle introduced in this content is a test drive provided by Hyundai Motor Company.

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