"The steer-by-wire system completely cancels the mechanical connection between the steering wheel and the steering wheel, completely gets rid of the various limitations of the traditional steering system, and can not only freely design the force transmission characteristics of the automobile steering, but also design the angular transmission characteristics of the automobile steering, which brings revolutionary changes to the design of the automobile steering characteristics. Pen ~ Fun ~ Pavilion www.biquge.info "Liu Chen talked eloquently, ha, this topic is a research topic that he graduated from in his previous life, and it is naturally clear.

Zhuo Ling smiled: "Sounds quite interesting. ”

Ma Rui said with a cold face: "To put it so awkwardly, what are the advantages of electric power steering? ”

"The traditional steering system is mechanically connected, and the power assist system is just to save you a little effort, so the angle of the front wheel steering cannot reach 180 degrees, and the electronic steer-by-wire completely cancels the mechanical lever in the middle, the wheels can turn 180 degrees, and the car can turn 360 degrees, so that you can completely learn to run sideways with the crab, and if you encounter a narrow place in the alley, you can also walk sideways unimpeded. ”

Zhuo Ling clapped her hands and said: "It sounds very good, especially the parking is very convenient, it's really interesting, but this seems to be still in the concept stage, I have never seen it on the market, if you build such a car, it must be cool." ”

"It's true, the concept was only proposed in 2001, and several major car manufacturers are still in the exploration stage, and the concept car has not yet come out, and we can build one to play with in the future. Liu Chen looked at her seriously and said.

The scorching gaze that was unintentionally revealed, and a red glow floated on Zhuo Ling's fair face.

"But it's not easy to build a concept car, so don't bother. ”

Ma Rui was dizzy, he was really unlucky, and deliberately raised a topic to give this kid a dismount, why does he understand this, seeing the interaction between the two in the back row, he really wanted to brake and let Liu Chen get out of the car immediately, and hold back this anger vigorously, the air conditioning in the car was so low. His face flushed.

"Several major car manufacturers have not adopted it, I'm afraid there are great drawbacks, or the practicability of electric power steering, Lingling. It's better for us to study this topic, and if Liu Chen's junior has spare time, you are also welcome to join in and give us some logistics and service work. Ma Rui said.

"Senior Ma Rui is wrong, SBW is not because of any drawbacks. On the contrary, there are many advantages, not only improve the operational stability of the car, but also more convenient to integrate with other systems, but too advanced, the technical difficulties are too high, and the biggest problem lies in road perception. ”

"What is this?" asked Zhuo Ling.

"The SBW is free from the mechanical connection, so it can't sense the road surface, just like an astronaut loses its sense of gravity when walking in space, and it can be very dangerous to drive at high speeds without road sense. ”

"Isn't that still not practical in the end!" Ma Rui finally seized the opportunity. Liu Chen's large technical descriptions simply collapsed him, which is more than a graduate student understands.

"Technical problems will always be solved, and in a few years, the cool pure electric vehicles may be available. Liu Chen said with a smile.

Zhuo Ling nodded and said, "Ma Rui, I still think that the SBW that Liu Chen said is a cutting-edge research topic, so it is better for us to change to this topic, since the electric power assist has been used in large quantities, there is really no need for much research." ”

"Hmm. Ma Rui nodded helplessly, and finally arrived at the Ascending Training Center. He looked at Liu Chen's face, and really wanted to rush up and punch him, who would let you know so much, it was simply a demon.

"Senior Ma Rui. Liu Chen shouted.

"What's the matter?" he tried to keep his tone calm.

Liu Chen smiled: "The Valvetronic engine does not need valves. Instead, the throttle is omitted, which is fundamentally different, without the valve, the engine is finished, and without the throttle, the engine directly controls the opening depth of the intake valve electronically to control the intake volume. The intake valve opens at a minimum depth of 0.25mm. The maximum is 9.7mm, a difference of 38.8 times. The reaction time required to go from the shallowest to the deepest is only 0.3 seconds. ”

"Got it, thanks for the reminder!" Ma Rui took a breath and left first.

Zhuo Ling smiled: "Senior brother, you know so much. ”

"The senior sister laughed, but it just so happened that I had studied automotive electronics, and I didn't know anything about other aspects, such as the movie that the senior sister is going to explain today. ”

"Don't you really understand? The movie analyzed today is "Walking in the Clouds", which is a story about pure love and a warm family. ”

"Ha, I can't wait to hear what my senior sister explains. ”

"Are you going to sit in on the lecture again? I'm nervous about giving a lecture in front of you, so don't point it out to your face if there's anything missing, and tell me secretly after class. Zhuo Ling smiled playfully, very cute.

When the two walked into the training center, Xiao Yue looked around in a ghostly manner, and shouted when she saw Liu Chen, and squeezed her eyebrows, Liu Chen followed him to the hidden place next to the stairs, and said angrily: "What are you doing sneaky, do the two of us have any ulterior secrets?"

"Brother, you have been very close to Zhuo Ling recently, can you do me a favor?"

Liu Chen looked at him and said in his heart, how old are you, brother, don't you still think about other people's little girls, "Brother Xiao, how old are you this year?"

Xiao Yue looked at herself and said, "Twenty-three, I haven't been long after I graduated. ”

"You...... You're ...... Twenty-three?"

He is five big and three thick, and the skin on his face is not very good, there are more acne scars, and his beard is thick, he looks like he is thirty-five or higher, Liu Chen really didn't expect it to be so small.

Touching her face embarrassedly, Xiao Yue said: "Hehe, I'm in a hurry, I didn't shave when I was in high school, and when I was a freshman in high school, a senior in the second year of high school called me uncle, which was so funny." ”

Is this really funny? Liu Chen laughed, and immediately said with a straight face: "Hey, I won't help you deliver love letters or anything, in fact, I think you should not try, you have been hit in vain." ”

Xiao Yue was stunned, "Brother, what are you talking about?"

"What are you looking for me to help you with?"

"I see that the courseware you made is vivid, so I want you to help me install Matlab, hehe, it's best to guide me by the way, in case Principal Xue asks me to do anything in the future, I don't have to do carpenter work." ”

"That's it?"

"That's it, otherwise what else can happen?" Xiao Yue opened her big innocent eyes.

Liu Chen vomited in his heart, brother, your Chinese is taught by the physical education teacher, there is no logical relationship before and after a sentence, first say Zhuo Ling, please help with this, serve you.

"Well, that's all right, you come to my house in the evening to find me. ”

"Okay, hehe, then I won't bother you to listen to Teacher Zhuo's lecture. Xiao Yue had just finished a few words, then suddenly stopped again, turned around and asked, "Are you Liu Chen?"

This is not nonsense! Liu Chen was quite speechless. (To be continued.) )