Bitauto Original In recent years, as the world has paid more and more attention to the energy crisis and the greenhouse effect, the development of new energy vehicles has also accelerated. In addition to pure electric models, hydrogen energy is another branch of new energy. At present, some car companies have begun to get involved in hydrogen energy, such as Changan, GAC, FAW, etc., and Toyota is an early car company.
Toyota's Mirai is the world's first mass-produced hydrogen fuel cell vehicle. Since its launch in 2014, global sales have exceeded 2 units. . Now the second-generation Mirai has also been introduced to the mainland market by GAC Toyota. The market suggested retail price is 74.8-75.1 yuan, and the first batch is limited to 50 units. .
For reference, the selling price of Toyota's Mirai in Japan is 710.6 million yen-860 million yen, which is equivalent to approximately RMB 35.526 million yuan-42.995 million yuan.
So as an early adopter of hydrogen energy vehicles, how does the second-generation Mirai perform when driven? I will answer it in detail for you next.
1. The hydrogen fuel cell system is not mysterious
Toyota's Mirai's hydrogen energy power system is actually not mysterious. It consists of a hydrogen energy fuel cell stack, a power battery of about 0.8kWh and 650V< /span>It consists of a drive motor, which chemically reacts hydrogen and oxygen to generate electrical energy, and then relies on the electric motor to drive the car.
The maximum power of the hydrogen fuel cell is 128kW, the maximum power of the drive motor is 134kW, the peak torque is 300N·m, 0-100km /h The acceleration time is 9.2 seconds, and the vehicle’s top speed is 175km/h.
The hydrogen storage tank of the second-generation Mirai is made of a three-layer structure. From the inside to the outside, it is made of resin, carbon fiber, and glass fiber. The number of the first-generation 2< /span> increased to 3. The hydrogen tanks are arranged in a "T" shape, with the longest longitudinal hydrogen tank installed under the vehicle floor, and two smaller hydrogen tanks arranged transversely under the rear seats and luggage compartment. The filling pressure is 70 MPa high pressure, and the total capacity can store 5.6 kilograms of hydrogen fuel. Compared with the previous generation, the hydrogen carrying capacity is increased by about 20%, energy consumption is reduced by about 10%, and it can travel 781km under ideal conditions.
Hydrogen energy vehicles breathe air, add hydrogen, and emit only water. The second generation Mirai has three situations to drain water. The first is to press the drain button of H2O. The second is to drain water automatically after turning off the engine. The third is to drain water when the water tank is full. Automatic drainage.
2. It drives like a pure electric car
The new car has four driving modes. It uses the power battery to start when starting; it uses the fuel cell stack to drive during normal driving; it uses both the fuel cell stack and the power battery to drive when accelerating; it recovers energy and supplies it to the power when decelerating. Battery charging.
From the perspective of actual power experience, the second-generation Mirai actually drives very much like an ordinary pure electric car. It is driven by a drive motor throughout, 134kW and < span>300N·mThe power is sufficient, and the response is instantaneous. It can be said to be very comfortable in daily driving on urban roads. Under high-speed road conditions, 100km/h there is still a certain push-back feeling when the speed is increased, and the power can give good confidence.
It is worth mentioning that when the second-generation Mirai’s hydrogen fuel cell stack is working, there is absolutely no feeling in the car.Noise, so this is why it is said to be very similar to a pure electric model.
3. The chassis has excellent texture and there is room for improvement in wind noise isolation
The second-generation Mirai is built on the same TNGA-GL platform as Lexus LS, and is powered by front-wheel drive ( FR) layout. Compared with the first generation, the overall length and width are increased, and the body height is lower, maintaining the TNGA architecture style of wide body and low center of gravity. At the same time, by optimizing the detailed layout, the entire vehicle achieves 50:50 front and rear weight distribution.
The steering of the second-generation Mirai is very light at low speeds, but the return damping is slightly lacking. When the speed increases, the steering will become calm and precise, and you will feel more confident when driving at high speeds.
In terms of chassis, the second-generation Mirai has a very good ground texture. It filters road vibrations very well, and the chassis sound insulation is also quite good. The overall chassis has a certain sense of weight.
However, the performance of the second-generation Mirai in terms of isolating wind noise is not as good as I expected. When the vehicle speed exceeds 110km/h, you can hear a certain amount of wind noise in the car. For a model built on the same platform as the Lexus LS, I think it still has some room for improvement.
4. Grand style
In terms of body size, the length, width and height of the second-generation Mirai are 4975/1890/1470mm respectively, and the wheelbase is 2920mm.
The new car is highly brand-recognizable in its exterior design, equipped with split headlights and a large grille. The body lines of the new car are smooth and the body design is relatively slender.
The rear is equipped with a through-type taillight set, which outlines a layered design through multiple straight lines, making the overall look more fashionable.
5. Interior tradition
The interior of the new car adopts an asymmetric layout, which is wrapped in a large area of leather and embellished with copper trim strips. The overall sense of class is online. However, in terms of design, its interior style is still more traditional and luxurious.
The new car is equipped with a 12.3-inch central display screen+ a large color head-up display+8-inch TFT color instrument The three-screen interconnection and car-machine systems are also traditional, and their functions have not yet caught up with the trend. However, it is equipped with Toyota Safety Sense, JBL advanced audio system (with 14 speakers) and mobile phone wireless charging, making the driving safe and comfortable. The degree has been further improved.
Summary: Although hydrogen energy has been developed for 10 years, the development speed is still slow. After all, hydrogen energy is both upstream and downstream in terms of manufacturing, storage, transportation, and hydrogenation station layout. The industrial chain is not particularly mature yet.
Similarly, for hydrogen energy vehicles, even if the second-generation Mirai is the leader, it still has problems to solve. Its hydrogen fuel cell stack is still quite large, and the entire cabin takes up a lot of space. At the same time, the three hydrogen storage tanks also take up a lot of seating space. Therefore, although the car is large, the actual seating space is not Big, it can be said that the space is not as good as that of Camry.
Another important point is cost control. Toyota said that by 2026 the cost of hydrogen energy will be reduced by half.
If the entire hydrogen energy chain matures, and hydrogen can run hundreds of kilometers in a few minutes, and the price is well controlled, then will hydrogen energy be the ultimate solution for cars? We'll see.