[YesAuto Fresh Technology Interpretation] In China, the first person to try something new is often described as the first person to eat crabs. ThyssenKrupp, whose business scope covers giant excavators, submarines, radio telescopes, etc., has recently demonstrated some of the latest automotive-related technologies among those who dare to “early adopt” in the field of automotive research and development. So, let us know whether these “crabs” are delicious or not.
Speaking of ThyssenKrupp, you may be relatively unfamiliar, but when you take the elevator next time, you may wish to pay attention to the brand of the elevator. If you find the word ThyssenKrupp, it is their product. As for the automotive field, in fact, many vehicles' camshafts, crankshafts, steering systems, and damping systems are provided by them.
It is precisely because ThyssenKrupp has such a glorious history that it has become the first component supplier to settle in our “Behind the Giant” series of topics. ThyssenKrupp, which has products as large as 10,000-ton bucket wheel excavators, radio telescopes with a diameter of 100 meters, etc., will bring new products similar to “black technology” that can be used on cars this time. One can't help but look forward to it.
■ Body part
Although we are usually attracted by its colorful body when observing a car, it is not the body itself. After removing the varnish, middle coating and electrophoretic anti-corrosion coating, it is the real car body. Its structure and strength will directly determine the safety of the drivers and passengers in the car in the event of a collision. Therefore, it is not an exaggeration to compare the car body to the concrete structure of a skyscraper. It is necessary to be cautious about “making a fuss” on the body.
For the body part, we first saw a lot of new technologies on lightweight materials and structures, but this company that has once manufactured the deepest Mariana trench submarine in the world will obviously not only show these “sincerity.” The design using polymer polymers is a bit too “boring” for ThyssenKrupp. Where are the technologies that have a strong German “black technology” meaning?
In the second half of the body part, ThyssenKrupp's persistent pursuit of technology does not seem to be reflected. The following technology is still slightly ordinary for them. Is there no bright spot to be found this time? Obviously this is not the case. If you carefully consider it, you will see the “habit” of German companies pursuing details.
Summary of body part:
For the body parts, the products that ThyssenKrupp brought this time are mainly to reduce the weight of the relevant parts as much as possible while ensuring the strength. Don't underestimate the weight of the 10% or a few kilograms. The car is lightweight. The work is from these ordinary 10%, integrated into an astonishing number. It has a positive effect on indirectly improving vehicle handling and reducing fuel consumption.
■ Powertrain part
● Low friction technology
For the engine, the intake and exhaust volume required under different working conditions are not the same. This is like the difference between the oxygen and exhaust gas that we humans need to inhale and exhale when sitting and running. The valve mechanism on the engine is The camshaft is an important part of the mechanism that adjusts the engine's intake and exhaust gas under different working conditions.
● Centralized oil and gas separator system camshaft
As we all know, because the engine is in continuous operation, the high-pressure mixture in the cylinder will enter the crankcase through the gap between the piston ring and the cylinder. This makes the crankcase contain trace amounts of gasoline and water vapor in addition to air and oil. And other substances. In order to prevent these substances from affecting the quality and lubrication effect of the engine oil, a device is required to separate the engine oil from other substances, allowing the engine oil to condense into oil drips and flow back to the oil pan to participate in the lubrication of the motion mechanism, and the rest of the air enters the turbine again. The intake side of the supercharger re-participates in combustion. This separating device is the oil-gas separator. As the trend of engine development and miniaturization continues to deepen, engineers have begun to make a fuss about oil and gas separators. This time, we saw the solution brought by ThyssenKrupp, they even put part of the oil and gas separator in the camshaft.
● Hybrid movable cam element
The German luxury car brand Audi has a valve train called AVS, the trump card of variable valve lift technology, which changes the valve opening by changing the cam height of the camshaft. ThyssenKrupp's hybrid movable cam element, which is brought by ThyssenKrupp, can help the AVS system reduce weight by 30% through material improvements.
Before entering the powertrain area, I guessed in my mind the technology that I might encounter, maybe it is super fast charging, maybe it is a brand new fuel injection method? After seeing the real thing, it was really shocking. ThyssenKrupp did not come up with some large-scale and cross-epoch technologies as I expected, but instead showed what they did on a small camshaft. This feeling is like Hercules proudly displaying its latest sesame mini-carving works.
● Hybrid camshaft module
In recent years, the trend of automobile engine design is integration and modularization, which can reduce the volume occupied by the system, which is beneficial for engineers to arrange the engine compartment. At this technical demonstration, we saw a hybrid camshaft module. To put it simply, an aluminum alloy cover is used to integrate the valve cover and camshaft.
Powertrain part summary:
In the powertrain section, ThyssenKrupp has brought a number of camshaft-related technologies, including lightweight technology, camshafts for centralized oil and gas separators, and camshaft modular design, which reflects The current trend of powertrain technology is miniaturization, integration, and modularization. At the same time, for the motor part, ThyssenKrupp has also made lightweight improvements.
■ Chassis and steering part
Compared with the body part and the powertrain part, the chassis and the steering part are more difficult for us to observe, but this does not mean that we usually have less contact. When we drive our car, turn the steering wheel, pass the speed bump, and filter the vibration when we are in potholes, these two parts are inseparable.
Full text summary:
Whether it is the Krupp cannon of World War II, the 10,000-ton excavator, or the sightseeing elevator on the observation tower of the Olympic Park, ThyssenKrupp, a German company, always likes to make giants. impression. The automotive engine parts it brought this time gave people a subversive impression. Whether it’s the lightweight technology to increase the strength and reduce the weight of the car body, or the powertrain that integrates oil and gas separators, the use of steel-plastic hybrid material camshafts, and the smaller size and larger torque steering motor, the car company behind The giant is equally handy when playing “embroidery needles”. For these new technologies, do you dare to become a crab-eater?