reborn industrial empire

The models developed this time are intended for mid-to-high-end models, so they must have quite eye-catching high-tech content in order to catch the attention of consumers, especially mid-to-high-end consumers.

There is nothing to say about ecoboost on the engine, and after thinking about it for a while, Jin Xiaoqiang abandoned his original idea and developed two ecoboost engines, inline 4-cylinder and V6. Fortunately, the previous dispute between Li Qiming and Liu Hong, the two of them

At that time, before Jin Xiaoqiang came back, the design and manufacturing of the two ecoboost engines, the inline 4 and the V6, were completed based on the drawings sent back by Jin Xiaoqiang.

It just so happened that this time Jin Xiaoqiang planned to copy the original GM Regal and LaCrosse models. He planned to equip the smaller Regal with a 4-cylinder engine and the LaCrosse with a V6 engine. This would solve the problem in China.

There are two issues with high-end and high-end.

But the remaining problem is the transmission this car is said to be equipped with.

The original Regal and LaCrosse models were equipped with GM's own 6-speed manual transmission, but this transmission has been criticized by consumers for its soft speed increase and weak vehicle power. The reason is this transmission.

above.

This time Jin Xiaoqiang plans to copy the PowerShift dual-clutch transmission that Ford later developed, and then directly install it on this model.

The concept of dual-clutch transmission has actually been around for decades, but it has never been popularized in ordinary family cars. Firstly, the technology has been immature, and secondly, the cost is too high.

In 1940, the dual-clutch transmission was invented by Frenchman Adolf.

Galci invented it and used it on Citroen models, but it didn't take long for the United States to have a world war.

The major European automobile manufacturers have also terminated their research on dual-clutch transmissions and have invested in research on war weapons.

At this time, Americans far away on the other side of the ocean invented a fully automatic transmission, and General Motors used this transmission extensively in cars. But what really popularized the concept of a fully automatic transmission was that General Motors used it in cars.

This transmission is used in the US military's PS and two light tanks.

Later, after the World War, this fully automatic transmission, just like Americans' Coca-Cola, luncheon meat, and Coca-Cola, was brought to all parts of the world by Americans and was accepted by many people.

After the war, many European car manufacturers abandoned their original dual-clutch technology and turned to the development of fully automatic transmissions. Only one company, Porsche, was still obsessed with dual-clutch and even developed several models and applied them to their racing cars.

, and achieved several good results in the 1978s, the dual-clutch transmission began to return to people's attention again.

However, due to cost and technical issues, it has not been widely promoted.

It was not until 2003, in order to cope with the shrinking global market and the increasing pressure of Japanese car manufacturers, that Volkswagen brought out the dual-clutch transmission again in order to technologically upgrade its own models.

And it was used in the most powerful version of the Golf 4th generation, the r32 model. It was this transmission that improved the original 0-100km/h of the r32 to 6.4 seconds, which not only won the r32 the reputation of the European small steel cannon.

, and the dual-clutch transmission also became famous all over the world.

Volkswagen happily named this transmission the new dq250, replacing the original old model. It was precisely because of the gimmick of this transmission that Volkswagen expanded rapidly from 2003 to 2007. In just five years,

In that time, they had sold more than one million cars equipped with dual-clutch transmissions.

The Americans also quickly followed up, and the fastest responder was Ford. However, due to previous technical debts, the Americans did not come up with a dual-clutch transmission called Powersihft until 2007. At this time, the German Volkswagen's DSG dual-clutch

The transmission has already become famous all over the world.

But things were not as smooth as expected. While Volkswagen was rapidly expanding, their DSG dual-clutch transmissions were constantly exposed to scandals with flaws.

For example, the car vibrates strongly when starting, and there is an obvious sense of frustration when shifting from 2nd gear to 3rd gear. The most dangerous thing is that when driving in the city, when stopping and going due to traffic jams, the internal temperature of the gearbox will be too high.

This eventually leads to problems such as the car crashing or even spontaneously igniting.

Such problems have widely appeared in Volkswagen's Sagitar brand and other vehicles, which not only attracted attention in the United States, but also later caused criticism from many consumers in China.

Finally, shortly before Jin Xiaoqiang's time travel and rebirth, Volkswagen had to recall a large number of cars equipped with this dual-clutch transmission around the world for modification.

And this is the main reason why Jin Xiaoqiang chose Ford's PowerShift dual-clutch transmission to copy, rather than Volkswagen's DSG.

Ford's dual-clutch transmission was developed later than Volkswagen, but it was precisely because of the late time that it coincided with Volkswagen's frequent transmission problems, so Ford engineers and Getla Dong

Engineers have done a lot of work in this area,

This prevents Ford's dual-clutch from encountering problems like Volkswagen's DSG.

The reason why a dual-clutch transmission is still chosen for research and development is because such a transmission will become a must-have mainstream transmission on high-end models in a few years. Although Volkswagen's DSG has a lot of negative rumors, it does not prevent people from paying attention to it.

I like the dual-clutch transmission. After all, compared with the AT transmission, it has the advantages of less loss, good transmission performance, quick shifting response, fuel saving, emission reduction, etc.

So now is a good time to start with dual-clutch transmissions. You must know that in a few years, not only Volkswagen's cars will be equipped with dual-clutch transmissions, but also Mitsubishi, Nissan, BMW, Citroen, Hyundai and other world-renowned major car companies.

Everyone will start to use such a transmission, and it is expected that by 2015, 13-15% of the cars in the world will be equipped with dual-clutch transmissions, so this is definitely a general trend.

Originally, the work on this copycat Ford dual-clutch transmission went very smoothly, from drawing to production.

This transmission is a wet transmission, which means that the transmission is filled with engine oil. Volkswagen's dual-clutch initially adopted this design, but later some adopted dry transmission because of its simple structure and low cost.

The design was based on Ford's original design. The drawings were drawn, and then processing began, followed by assembly. Jin Xiaoqiang did everything he could to block Ford's way.

The hollow design is all copied from the original to reduce the weight of the entire gearbox.

You must know that these are all technical selling points that Ford was proud of later. Unfortunately, they are all inventions of Jin Xiaoqiang, and he also added a lot of his own designs to them, and some of them were copied from Ford's improved technologies later.

came out.

Well, it was only 2004, when Ford had just begun to respond to Volkswagen's offensive, and it was only then that they began to pay attention to dual-clutch transmissions. They had just begun to organize research on this dual-clutch transmission with their partner Getrag.

How could they have imagined that a product that was supposed to be theirs a few years later would now be copied by Jin Xiaoqiang?

The design of each component was quickly completed, then processed and assembled, and then the test machine began. However, at this time, Jin Xiaoqiang encountered a problem.

That is, the cooling oil in the transmission does not meet the specifications, causing his transmission to encounter the same problem as Volkswagen's dual-clutch transmission. That is, once the oil temperature inside the transmission exceeds 138 degrees, the car's ECU will reduce power.

output, and when the oil temperature exceeds 145 degrees, the clutch will automatically disconnect and the entire transmission will automatically start to work!

This made Jin Xiaoqiang, who was originally full of confidence, suddenly dumbfounded. Originally, this should be a problem unique to Volkswagen's DSG dual-clutch transmission. How did it happen to his own transmission now?

In fact, Jin Xiaoqiang also knows that the earliest dual-clutch transmission named dq250 used by Volkswagen is actually not very different in structure from the PowerShift dual-clutch transmission later developed by Ford, that is, the name is different, but inside

The contents are actually very similar.

They are all six-speed wet dual-clutch transmissions, but Ford engineers, after learning from some of the problems reflected in Volkswagen's transmissions, made some fine-tuning on the gears and gear layout of the transmission to avoid the problems that Volkswagen's transmission

When the transmission downshifts in a high gear, there will be body shaking and a feeling of sluggish shifting.

But I didn't expect that after I copied Ford's transmission, although I solved the problems of shifting gears and body vibration, I would be stumped by the problem of high temperature shutdown.

Jin Xiaoqiang thought about it carefully for less than half an hour before he figured it out. In fact, in later generations, the reason why Ford's wet dual-clutch did not suffer from Volkswagen's high-temperature shutdown problem was because of the temperature sensing inside the transmission.

There have been changes to the components, and secondly, it has something to do with the lubricating oil inside the transmission.

After Volkswagen's dual-clutch products were launched, many problems quickly broke out. Among them, the most reported problem by consumers was the problem that the transmission suddenly stopped and stopped when it was hot.

Ford also noticed this, and although it made corresponding adjustments after that, the final solution to the problem was to use different cooling oil in the bo tank.

Although Jin Xiaoqiang can now use the structure of Ford's dual-clutch transmission, where can he get the formula of lubricating oil with very good cooling properties?

You must know that he is only a mechanical professional, but not a chemical professional. It took Ford five years to develop its own dual-clutch transmission, and it must have been a headache for the cooling issue.

, as far as this time period is concerned, people must not have come up with that cooling oil yet!

How can I do this?!