I bought a prison in the United States.

That current plan will not be publicly unveiled for at least another year at the Society of Automotive Engineers (SAE) annual meeting in Detroit.

In other words, Brad is sitting here trying to solve the problems of the common people's market with an aristocratic solution, completely unaware that another, lower-cost technological path is waiting to be discovered around the corner.

After considering it for a moment, Lin Ge said:

"Mr. Brad, I have a question."

"Please speak."

"What is the range of brake pressure adjustment for your system?"

"0~180 bar"

"What about the response frequency?"

"A maximum of twenty-five times per second."

Lin Ge put down his teacup and tapped his finger lightly on the coffee table.

"Have you considered removing the hydraulic accumulator and replacing it with a DC motor-driven return oil pump for pressure regulation?"

Brad paused for a moment, "Return pump?"

"Yes, according to general logic, during braking, the hydraulic accumulator temporarily stores the excess brake fluid and releases it when the braking pressure needs to be restored."

"But this accumulator itself is a high-cost precision hydraulic component."

"If we reverse the process, allowing the brake fluid to flow directly back to the master cylinder during depressurization, and using a small electric return pump to pump the fluid back to restore pressure, the entire hydraulic circuit is simplified by half!"

"Is that so? No, let me calculate this."

Brad rested his chin on his fingers, then suddenly grabbed the notebook and began scribbling something rapidly on the blank page.

He drew a simplified hydraulic circuit diagram, with arrows indicating the flow direction of brake fluid in different operating modes.

Pressurization, pressure holding, pressure reduction, recovery...

After finishing the drawing, he stared at it for a long time.

The reception room was so quiet that only the ticking of the second hand of the old clock on the wall could be heard.

Underwood sat on the armchair, the unlit cigar in his hand unconsciously placed on the edge of the ashtray.

His eyes darted back and forth between his son and Ringo, a deep interest in his gaze beneath his brow.

He knew what kind of person his son was.

From childhood, Brad's fascination with machinery far outweighed his concern for the family business.

He could spend an entire day in the workshop, disassembling and reassembling parts repeatedly until he fully understood the principles behind each component.

In Oklahoma, there are very few people who can get him to go from casual conversation to full attention in three minutes.

He hadn't expected that Lingo seemed to have some involvement in the automotive industry; none of the materials he found mentioned any related experience.

This made Mr. Underwood even more curious about Ringo.

"Mr. Chen, it seems there's no problem."

Brad finally spoke excitedly:

"If we use this return pump solution, what do you think the response speed will be?"

Although Lin Ge is not a professional, he still provided a relatively reliable figure:

"Theoretically, it can reach more than 20 times per second, and in actual tests it should be stable at 20 to 25 times per second, which is on par with Bosch's energy storage solution."

"But the cost can be reduced to at least 40% of the original."

Brad closed his notebook and took a deep breath.

His hands were still trembling slightly from excessive excitement.

"Mr. Chen, you just told me that you know a little about ABS, but in my opinion, someone who can propose a return pump solution is definitely not someone who knows a little about ABS."

Brad's gaze fell on Ringo's face, as if he were very puzzled:

"This solution is different from the existing ABS design concepts on the market."

"It's so simple, so simple that someone who's been in this industry for years is wondering, 'Why didn't I think of that sooner?'"

Lin Ge calmly met his gaze and said with a smile:

"Some solutions appear simple not because they are simple, but because you look at them from a different perspective."

"You've been stuck in the Bosch framework for too long, Mr. Brad."

"Bosch engineers are accustomed to using accumulators to solve pressure regulation problems because that is their traditional strength in hydraulic systems."

"But when tools become habits, it's hard to step back and re-examine the problem itself."

Brad never expected that his trip to visit his father would lead to such a reward.

"Dad, your guest is indeed extraordinary."

He turned to Ringo, his gaze becoming very focused:

"Mr. Chen, my dad said you set up some kind of technology research and development group in prison, and that you're working on a brand new surveillance system?"

"right."

"If your prisoners can build a surveillance system, based on your idea of ​​an oil return pump, then their technical skills are definitely not bad."

Brad closed the notebook and put it back in the inside pocket of his work jacket.

"I have a suggestion, I wonder if you would be interested."

"Please speak."

"If your R&D team can develop a monitoring system, they should also be able to solve some automotive electronics problems."

"Especially the drive circuit of the solenoid valve and the signal processing of the wheel speed sensor."

"I currently outsource these two tasks to an electronics studio in Tulsa, which is not cheap and has high communication costs."

"If your people can handle these two areas, I'm willing to transfer the outsourcing business for the circuit part to you."

"The unit price will be calculated based on our current market price; we will absolutely not lower the price!"

"I can even provide your people with several ABS experimental prototypes for reference."

Lin Ge quickly went through the personnel composition of the technology research and development team in his mind.

Morris worked in IBM's hardware division for eleven years, so solenoid valve drive circuits should not be complicated for him.

Omar had worked in signal transmission at AT&T, and the pulse signal processing of wheel speed sensors was exactly where he came in.

Yes, I can accept it!

"No problem, Mr. Brad."

A confident expression appeared on Ling Ge's face:

"Send me the specific specifications later, and I'll have my team leader prepare a technical assessment. If it's feasible, we can get started by the end of the month."

Brad smiled.

The emotional label that had always been "curiosity" above his head now has another label next to it: "trust".

"Then it's settled, Mr. Chen. Oh, right, there's one more thing."

"Speaking."

"The Oklahoma State Racing Association is hosting a drag race in Tulsa on the 20th of next month, and I'd like to invite you!"

"The location is on the outskirts of the city, at Tulsa Raceway, about a 40-minute drive from your jail."

"This competition is sponsored by our company and several other car dealerships. This is the fifth edition, and it's bigger than ever before."

Brad pulled a beautifully printed invitation from his jacket pocket, placed it on the coffee table, and pushed it in front of Ringo.

The invitation cover featured a Ford Mustang with two black tire tracks left on the starting line.