The high-speed gear is connected to the two EFI pumps in the bow, which are operated by the rudder, and the power of the EFI pump is adjusted to the left and right, and the problem can be solved with a modulator, but the rudder to the left is to adjust the current intensity of the EFI pump on the right side of the bow, so that it will really turn to the left, and in the same way, the right rudder is actually to adjust the current intensity of the EFI pump on the left side of the bow.

The low-speed gear is connected to the stern two EFI pumps and the hydraulic power steering system at the same time, but there is a problem in this, the two high-power EFI pumps are not only controlled by the switch of the low-speed gear, it is also controlled by the start switch, so this is actually a parallel circuit, if the start switch has been turned on, indicating that the boat has been in a normal driving state, then the control function of the low-speed gear has been lost, because it is already a channel state at this time, and the switch is turned on and off without any effect.

However, it should be noted that when the boat is berthed, the gear must not be hung on the low speed gear, because it has the same effect as the start switch, of course, several other function gears can also not be hung, so the neutral gear is set.

The low gear can only be used for small turns, whether it is parked or driving, so it mainly adjusts the two sets of hydraulic power assist systems.

When you get here, it's not about adjusting the current intensity, because it's two stepper motors, and there is also a gear system, so when you get here, it's changed to a pulse signal, and a contact is a pulse signal, which unifies the control function of the bow and stern, and you can control it with a rudder.

At this point, you should find that this new frigate can be anchored and set sail without the help of a tugboat, because of the power provided by high-energy lithium batteries, and the steam turbine has the power to do this without turning it on.

Because it is an EFI pump, the speed of the ship can be controlled by controlling the current intensity or stopping the start, and the two small EFI pumps in the bow can also be turned on at the same time to slow down.

This advanced control method is the same as the most advanced all-electric power system in later generations, which is not possible with other power systems, even if it is a diesel-powered ship, because the diesel power is directly driven by the propeller to sail, the flexibility is not enough, and the tugboat is also needed.

In addition, the propeller can not provide power immediately, and it must rotate for a period of time to produce vortex current, which will produce reaction force and drive the hull movement.

These excellent performances were all considered and matured by Yang Wenli when he designed the frigate, and they were also integrated into the design drawings, and he himself led the design team to design the train chassis system.

"Your Majesty, this hub motor and brake system are all integrated inside the small train wheels, which is a little unstable, and it is bound to weaken the braking performance if it improves the power performance, and heat dissipation is also a big problem, please advise Your Majesty."

A designer responsible for the design of the most complex wheel hub system raised his hand and asked Yang Wenli a question.

"I've always said that if we know how to make trade-offs when we are engaged in design, it is difficult to achieve perfection in the world, and as you said, improving the power performance will inevitably weaken the braking performance.

But...... In fact, braking performance is more important, safety is the most important, the fastest and most energy-saving, if it is not safe, we can vote no.

So the first point, we have to think about the power system on top of the enough insurance brake system, if the space is really not enough, we can engage in shaft transmission, the motor is placed in the middle of the beam, the inside of the beam is hollow, and a transmission shaft is placed to drive the train wheel. ”

"Whoa! I know it, thank you, Your Majesty! ”

Although it is just a simple train chassis, Yang Wenli thinks more, this efficient distributed power system is actually the basic prototype of the high-speed rail in later generations, so Yang Wenli's requirements are a little high, especially the power system and brake system.

This high can stump the following technicians, just now the designer said that the hub motor is one of his ideas, later generations also have car companies do this, it can be said that a bit of a different way, but the train is not a car after all, it has very harsh requirements for the performance of the brake system, and the corresponding volume is also much larger, so it can not fit a big hub motor.

"Your Majesty," another man called for him.

"What's the matter?" Yang Wenli walked over and asked him softly by the side of his desk with his hands propped up.

"Your Majesty, I can't think of how to supply power to the train, which requires high-voltage electricity, but it has to be through the factory, and the safety cannot be guaranteed."

"Indeed, if it is only external, we can erect high-voltage lines, and a firearm can be stretched out on the train to solve this problem, but the problem is that it is impossible to erect high-voltage lines inside the factory.

But did you find any? The factory building is very close to the dock, because the train is carrying ships in sections, the speed will be very slow, we can use a cable to supply power, then you can use manual or use the roller, no problem. ”

"Whoa! Humble duty understood, thank you, Your Majesty! ”

The simple design of the train chassis, except for the power system and brake system, other parts are not complicated, the difficulty is the production process and materials.

For example, the buckle between every two trains is very simple, but China did not do well until the nineties, the first is the problem of materials, the second is that the process is not precise enough, so that the kinetic energy of the train is lost very much, and it is particularly loud, friends who have taken the green train know that the sound is really deafening.

Therefore, designers can't work behind closed doors, let alone complex systems, sometimes a simple thing can't be made, and often the simpler it is, the more it can't be done.

Anything is large to a certain extent, it involves the material problem, but the material is sometimes included in the process, the same material, the quenching and tempering is done well, the performance is far from the same.

Everyone knows that those who engage in scientific research have the problem of forgetting to sleep and eat, Yang Wenli forgot the time when he was busy, and it was almost the end of the year, and the time of the year was gone.

Yang Wenli is a solid technology controller, compared with the carpenter emperor of the Ming Dynasty, and even surpassed, because he is Xie Shi and has not been in charge of anything other than scientific research.

If it were any other country, he would be a proper king of the fallen country, but the Far Eastern kingdom has developed quickly and well, and this is the advantage of the constitutional monarchy, each with his own duties, and also a professional supervisory body to ensure the healthy operation of the government and the army.

Although he didn't care about anything, at the end of each year, the government and the army had to make a year-end report to him, and Yang Wenli also handed him the report, and he realized that the Chinese New Year was coming soon.

……