All round car designer

Chapter 122 Completion of Engine Modification

In the following time, Zhou Fei began to assign specific tasks to the current staffing of the company.

Compared with the development of new cars, the tasks assigned by Zhou Fei to each department are actually very simple, because Zhou Fei has already given specific parameters for the assembly of key components such as gearboxes and brakes, and each department only needs to follow these requirements. , to find the corresponding supplier.

To put it bluntly, this is the work content of supplier development, which belongs to the scope of QE's responsibilities, but there are too many parts involved, and the existing procurement department alone cannot handle it, so Zhou Fei asked other departments to participate in it.

As for the engine of the QQ car, Zhou Fei does not intend to completely redevelop it. The original QQ uses the CAC-SQR372 inline 3-cylinder double overhead camshaft engine independently developed by Chery. Only 812CC, the maximum output torque is 70Nm, far lower than EA888.

Considering the compatibility of the production line, Zhou Fei plans to use the existing EA888 production line to carry out corresponding modifications on the basis of the EA888 engine, and derive a three-cylinder engine suitable for QQ!

In this way, these two engines can be produced at the same time without rebuilding the production workshop, which not only saves the production cycle of QQ, but also saves a lot of money for Zhou Fei.

"Everyone, I will ask the secretary to send the assignment to your mailbox. My request is that all supplier development must be completed before June this year. This work will be included in the performance of each department in the first half of the year. It's under assessment, so please take it seriously."

After the assignment was over, Zhou Fei continued to exhort.

"In addition, before the company officially announces the vehicle plan, no one is allowed to disclose the company's arrangements without authorization. Everyone can do their own work well."

After answering other questions from several responsible persons, this meeting officially came to an end.

Zhou Fei sorted out the meeting materials and walked out of the meeting room with Zhou Dehai.

"Dad, just say what you have to say." Seeing Zhou Dehai's hesitant expression, Zhou Fei said with a smile.

"I still think that the initial analysis of old Chen from the project department is very reasonable. Now that we are in a hurry to produce the whole vehicle, we really shouldn't be in too much of a hurry?" Zhou Dehai looked at Zhou Fei and said with some concern.

Zhou Dehai did not raise these questions at the meeting just now. With everyone else being persuaded by Zhou Fei, Zhou Dehai naturally wanted to support his son. As for saying it now, he was just as a father , to express concern for his son.

Zhou Fei smiled, "Don't worry, Dad, I know it in my heart. Since I dare to raise it in front of the whole company, it means that I have thought it through carefully, and there is no such thing as rushing."

Whether it is funds or market conditions, Zhou Fei has done some research. In the current domestic auto market, the most dynamic consumer group must be young people. They may not have the strongest purchasing power, but they must have the strongest desire to buy cars of.

In contrast, there are almost no vehicles specially developed for young people, not to mention the domestic market, even if you look at the entire international market. The price of a car that costs 10,000+ is a lot of money for most young people. Big burden.

The QQ car is aimed at this group of consumers. Zhou Fei believes that with the popularity of this car in the previous life, it will definitely become a hit!
More importantly, this car can also bring a group of the most loyal users to Mercedes-Benz, forming a consumption anchor. Once the first car for these young people is the QQ launched by Mercedes-Benz, then when they are economically With strength, when you want to change cars, you will naturally think of buying other models of Mercedes-Benz.

Zhou Fei wants to use the QQ car to leverage the entire domestic auto market!
"Okay, I just asked casually. Since you are so confident, your mother and I must support you." Zhou Dehai smiled and patted Zhou Fei on the shoulder, "Don't carry it alone, Dad Not old yet."

"Understood, thank you Dad." Zhou Fei nodded and replied emotionally.

***
After returning to the office, Zhou Fei directly opened the 888D model of EA[-] in the computer and began to consider how to modify the engine so that it can meet the requirements of the QQ car.

First of all, a large-scale modification must be made on the size parameters of the engine. EA888 is mainly used in B-class cars and C-class cars, while QQ is a typical mini car, and the size gap between the two is very large.

Thinking of this, Zhou Fei immediately entered the system, and after finding the information on the CAC-SQR372/inline 3-cylinder DOHC engine originally equipped with QQ, he began to study it seriously.

Only by knowing the relevant parameters of the CAC-SQR372 engine can Zhou Fei effectively modify the EA888.

Soon, Zhou Fei found the information he wanted. The cylinder arrangement is L, the compression ratio is 11, the valve train is DOHC, and the cylinder diameter...

After recording the information, Zhou Fei returned to the computer and thought about the [-]D model on the screen for more than ten minutes before picking up the mouse and starting to modify the model.

Zhou Fei does not need to make any changes to the arrangement of cylinders and the basic structure of the valve mechanism, mainly for the cylinder bore and piston stroke.

But Zhou Fei far underestimated the difficulty of this work. It seems that it only needs to modify the relevant data, but it is not the case. Once a certain parameter changes, other parts in the engine must also change. A job that affects the whole body.

It took more than two hours for Zhou Fei to complete a small part of the modification work, which is not the end.After completing these modifications, Zhou Fei came to the workshop for the first time, and compared the production equipment in the workshop to see whether after such changes, it was still within the processing range of the equipment, otherwise further improvements were needed.

In this way, for the next period of time, Zhou Fei almost ran back and forth between the office and the workshop. He often made parameter changes in the morning, and after comparing with the equipment in the afternoon, he found that such changes could no longer be used on the spot. After some equipment was processed normally, Zhou Fei had to rush back to continue to modify.

Later, Zhou Fei simply moved his office to the workshop, holding his laptop on the rumbling production line, doing comparisons, making revisions and perfections at the same time.

It was not until March that Zhou Fei completed all the modifications of this engine, and had already carried out the assembly operation in the [-]D model of QQ. Facts have proved that such modifications are completely feasible!

For the modified engine, Zhou Fei did not continue to use Chery's previous name, but re-named it, and the company collectively called it "FCQ1"!
In terms of specific parameters, FCQ1 can be said to have restored the design essence of the CAC-SQR100 engine by 372%.

Although the calibration work has not been carried out, the specific parameters are still unknown, but Zhou Fei has reason to believe that this FCQ1 must be better and more powerful than the CAC-SQR372!

(End of this chapter)