Toyota hybrid technology is the first in the world, and Honda hybrid technology is the first in the world
BYD hybrid technology ranks first in the world
XXX hybrid technology is the world's first
......
25 years ago, when the Toyota Prius was launched, it quietly laid the groundwork for the phrase "there are only two hybrids in the world, Toyota and the other".
However, now that some people are finally unconvinced, the Honda Party feels that its own i-MMD is YYDS, which is better than Toyota THS.
The BYD party is not convinced by Honda and Toyota, and feels that its DM-i is more fuel-efficient, smoother, and can also be a pure electric car to crown the YYDS.
But at that time, the DHT of the Great Wall was launched, and the iDD of Chang'an was also launched, and this "hybrid" battle was very chaotic.
What is THS? What is DM-i?
A large number of netizens have been unable to distinguish the difference between them, and the only position that is not confused is only one:
The hybrid technology of "My Home" is NO.1
When a quasi-new second-hand Corolla dual engine version of the hanging price is only a few thousand yuan less than the new car, when a 10,000-kilometer Qin PLUS DM-i can still be recovered by the car dealer at the original price, we should realize one thing:
The way the game is played has changed
(Want to see who cattle X and purchase suggestions, you can directly skip 1-4 points of technical analysis, turn down)
1. What is Toyota THS
From THS I to THS IV, Toyota Hybrid Systems has gone through four generations, and the important feature of this system is the design of a single-row, single-stage planetary gear mechanism, with the core components consisting of a solar wheel, planetary gears, planetary gear seats and ring gears.
thereinto:
MG1 motor: Used as a starting engine, power generation and speed regulation.
MG2 motor: Used as a drive motor, generator, direct drive wheel.
To understand more simply, the MG1 motor assists the engine to start, and the engine drives the MG2 generator to charge the battery in addition to the direct drive wheels during the driving process.
The high-speed cruise engine is the main source of power, and the braking vehicle can make the engine shut down, at this time the motor is forward, the generator is reversed, and all can generate electricity to charge the battery.
essentially:
The electric drive system of Toyota's THS system mainly provides driving force for low- and medium-load conditions.
But the engine is the main driving source, and the introduction of the Atkinson cycle system can improve the compression ratio of the engine, making it more fuel efficient.
2. What is Honda i-MMD
The ingenuity of the Honda i-MMD system design is that the traditional unit with multiple parallel axes can have multiple power output modes.
The system consists of a 2.0L Atkinson cycle engine, drive motor, generator, lithium battery and E-CVT.
Among them, the PCU control system can balance the power output of different modes to achieve high performance and high combustion.
Torque coupling is an important way of power output of i-MMD systems, and it is easier to understand that the motor and output shaft must operate simultaneously.
And when the motor needs to be mixed with the engine output, it can be controlled by the clutch, and the engine and the motor are required to maintain a fixed speed.
The rigid connection structure of the generator and the engine allows it to maintain a fixed speed ratio.
Therefore, in the hybrid mode, the engine and the motor can superimpose the power output, the generator generates electricity synchronously to charge the lithium battery, and the motor can also directly drive the motor shaft and directly drive the wheels.
This set of combination punches down, although the Honda i-MMD started far behind the Toyota THS, but circumvented the Toyota THS technology patent.
It also allows the Honda i-MMD to have its own technical representative works in the hybrid industry.
3. What is BYD DM-i
"Super hybrid" is a new word that is very popular this year, and DM-i is the main body of super hybrid.
The DM-i system is mainly composed of a 1.5L/1.5Ti high-efficiency engine, an EHS mixing system and a blade battery.
The EHS electromissible system adopts a series-parallel structure, with dual motors, single gear reducers, double electronic controls and other components.
DM-i hybrid system pursues a large battery and pure electric drive based on the working mode, the engine is only an auxiliary role, in the low, medium and high speed working range, basically driven by high efficiency motor pure electric drive.
The 8.3-22.3kWh battery pack provides a pure electric cruising range of 52-120km, and the engine can run in a more efficient range at high speeds.
This makes it thermally efficient at 40% (1.5 Ti) and 43.04% (1.5L), and the compression ratio of a 1.5L engine is even as high as 15.5.
4. What is great wall lemon hybrid DHT?
A system with two power structures, both HEV and PHEV, and a two-speed transmission.
Support pure electricity, hybrid, engine direct drive three power forms, equivalent to a set of hybrid system, integrated three sets of powertrain, this way of play is the Great Wall lemon hybrid DHT technology.
The two-wheel drive HEV hybrid architecture can place a small battery pack on the rear axle, and the PHEV two-wheel drive hybrid architecture can place a large battery pack in the center of the chassis, and the pure electric endurance can even exceed 200km, which is the best of THE PHEV.
The PHEV four-wheel drive hybrid structure is based on two-wheel drive, and a P4 high-performance transaxle is superimposed on the rear axle.
In this way, the lemon hybrid hybrid topology of this two-motor hybrid has a multi-power choice, which can be flexibly arranged according to different models.
Who is better than whom cow X?
The working logic of the Toyota THS and Honda i-MMD systems is actually roughly the same, and the purpose is to reduce the proportion of engine operation during inefficient operation.
As far as possible, the low and medium speed conditions are handed over to the electric drive system to execute, so that the engine can work in a higher thermal efficiency range.
That is, to obtain a strong power performance at low and medium speeds, it can also make the engine more fuel-efficient.
But the Honda i-MMD has an advantage over the Toyota THS in that a more powerful motor can drive the wheels directly to a wider space.
If the space for direct engine drive is further narrowed, or even the direct engine drive is eliminated, the i-MMD can become a "range extended hybrid system".
If the battery is enlarged, it can become a plug-in hybrid system.
Therefore, from the perspective of Honda i-MMD's electric drive-based thinking, the system itself can be excavated and expandable, just like building blocks, changing the method to build.
In contrast, the proportion of direct drive of Toyota THS engine will be higher, the motor is only an auxiliary role, and the expansion of the power structure is limited.
The idea of BYD DM-i is actually very similar to the Honda i-MMD, which is mainly driven by motors, especially in low- and medium-speed conditions.
However, the range of pure electric drive of BYD DM-i is larger, and it can not use the engine without the engine, even if the medium and high-speed cruise engine is involved in the direct drive.
But in 99% of the cases are pure electric drives of the motor, so BYD dares to shout that the feed fuel consumption is as low as 3.8L/100km.
It can be said that DM-i is a PHEV system that is infinitely close to pure electric drive, which is different from the BYD DM system in the past.
The Great Wall Lemon Hybrid DHT can be said to be the new shoulder handle of the hybrid class, supporting two power forms of HEV and PHEV.
By laying out the powertrain and gearbox with different power, the conversion of HEV and PHEV can be realized.
In particular, the use of two-speed transmissions can obtain higher performance support, which is more advanced than Honda's one-speed reducer design.
Put it this way:
THE BYD DM-i and GREAT WALL LEMON HYBRID DHT have the technology to be no less than Honda's i-MMD system.
In the current electric drive mode of structural design logic and electrification, the whole system is more in line with the technical direction of "new energy".
To talk about who is better than who is the best of the best, in fact, it is clear at a glance.
But buying a car is not only about advanced technology, but also about reliability, and the hybrid of BYD and the Great Wall has yet to be tested.
Compared with the Toyota THS, the reliability of the Honda i-MMD also takes longer to test.
Who should I buy?
Take the Toyota Crown Land Release HEV as an example, equipped with the latest generation of THS system.
Unlike the Honda i-MMD, which requires the use of clutches to control power source shunting, the smoothness of power output can be described as a ride.
In the case of Haoying Rui Hybrid, the combined system power of 158kW brings better performance.
Although there will be a slight frustration between engine intervention and power source switching, the experience of more pure electric drive is closer to that of pure electric vehicles, and the fuel consumption can be as low as 4.9L/100km.
Whether BYD is Qin PLUS DM-i or Song PLUS DM-i, or even the Han DM-i that is about to be launched, the driving experience has been infinitely close to pure trams.
The 3.8L/100km feeder fuel consumption is highly realistic, which is a major feature of this system. (Basic daily 4L/100km or so)
Like the Mocha DHT-PHEV, more than 80km/h requires direct engine drive, and the feeder fuel consumption of a PHEV model is only 5.55L/100km.
However, zero hundred acceleration can achieve 4.8s, which is stronger than Tang DM's comprehensive ability.
Therefore, the requirements for power are not very high, and there are requirements for the "absolute smoothness" of power.
And I want to sit comfortably in a car, and I want to be reliable - choose Toyota THS.
If there are some requirements for performance, but the pursuit is not so extreme.
But I want to have more of an electric driving experience than the average HEV model to transition to a pure electric car – choose the Honda i-MMD.
If you have strict requirements for fuel consumption, and at the same time do not want to have mileage anxiety, but also want to have an almost pure electricity-like experience, the price is good and cheap.
Whether it is Qin PLUS DM-i or Han DM-i, the dm-i system division of the model is super cost-effective, almost overshadowed by the same level.
If you have higher requirements for performance, fuel consumption, mileage, etc., and at the same time, you are willing to be a guinea pig with a sufficient budget.
Then the Great Wall's lemon hybrid DHT models can be chosen, and there are choices between different price levels.
Whoever has more hybrid technology has a lever in everyone's psyche.
As for how to choose the models, relative suggestions have been given.
So, in the end, who do everyone choose to take sides for?