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The other day I was waiting at a traffic light when a Porsche came along in the opposite lane. The other side was also at a red light, so the Porsche applied its brakes.A loud "squeak" sound, like when you brake suddenly on a bicycle.was heard.
I couldn't help but say, "What's that noise? I said, "Maybe the brakes are broken.
It's not broken. On the contrary, that brake squeal is a sign of Porsche's high brake performance. If the brakes squeal, it's a sign of high brake performance."The Porsche Testimonial."Some people even say, "I'm not sure I can do that.
He said.
Heh... (-_-)
Her husband continued.
Come to think of it.Squealing brakes are not a defect."Porsche has posted a video on youtube before. If you watch it, you will know more about Porsche's brakes.
He later sent me the URL of the video. I immediately opened it, but as usual, the video was explained in English... (-_-)(I'm not a good English speaker, so it takes me quite a while to understand it as I translate it.)
I watched the video with English subtitles all the way through, but I don't understand the brake mechanism itself to begin with, so when they say "brake rotors" and "pads," it doesn't ring a bell. So, let's start withHow the car stops.I was finally able to understand what the video was about after looking it up from the (laugh)
The brakes cause the car to slow down or stop.Friction Phenomenon."This is because the mechanism of the When the brake pedal is depressed, the hydraulic pressure in the cylinder changes, which is transmitted to the brake pipes and brake hoses. From thereFriction is created by pressing the brake pads against the brake disc, causing the car to stop.In other words.
The car stops by converting the power generated by the friction phenomenon into heat energy.
The use of frictional phenomena naturally means that brake-related parts will wear out. So, in generalIf you hear a squeaking sound when you step on the brake, you must have it checked out by a dealer immediately because it could be a dangerous condition due to worn parts or low brake fluid levels."It is considered to be a
Many people have that perception and think that a car as luxurious as a Porsche shouldn't make that noise, so when they buy a new Porsche and suddenly hear a squeaking sound when they step on the brake"It's a new car, but the brakes are defective!" They're defective!" This is often the case with complaints such asIt seems.
With this in mind, I took another look at Porsche's explanatory video. First, Porsche has
This noise is often mistaken for a malfunction, but that is rare
He explains.
Porsche brakes are supposedly the best in the world.Designed to provide the same braking performance whether driving at high speeds, such as on a race circuit, or at low speeds in town, no matter when and under what conditions the brakes are applied.The company is being
That's why Porsche's brake discs are designed to be considerably larger than those of a typical car.'The contact surface with the brake pads is made as wide as possible to increase friction, allowing the vehicle to stop safely at all times.'The "M" is now in the process of becoming a "M". In addition, the "High quality brake discs and brake pads are used to maintain high friction levels over a wide range of contact temperatures."
However, the larger the friction surface, the more likely the "stick-slip phenomenon" will occur. What is stick-slip phenomenon?"Refers to a phenomenon in which self-excited oscillation is caused by repeated microscopic friction surface adhesion and slippage that occurs on the friction surface."However, this vibration generates noise, which is heard as a loud squeal like a speaker due to resonance with the brake rotors.
The average car is not equipped with brake discs as large as Porsche's or high-quality brake pads and rotors that can withstand high temperatures, so on the contrary, brake squeal is not often audible.
In other words, the squealing of brakes is "proof of the high quality and performance of Porsche brakes.
Also, the larger the disc, the heavier the disc naturally becomes, but Porsche is constantly making improvements, such as using carbon for the disc, in order to reduce the weight of the parts.
According to the video, "the current Porsche brake system is the best in its class," but Porsche engineers' goal is just that.It's high performance, yet technically squeaky clean."It is said that.
After that, my husband sent me a URL regarding Porsche brakes, saying, "You should also check out this page on Porsche Japan.(EXPLOSION)There arePorsche has set its own standards for braking performance, the highest in the industry. All braking systems must ultimately meet these standards.It was written.
Various tests are repeated during the development process, but the most severe of all is a braking test conducted at the Nardo ultra-high-speed test course in Italy. In this test, the vehicle is accelerated from 90 km/h to 230 km/h, and then the brake pedal is quickly depressed and the vehicle is brought to a sudden stop. By the 15th braking cycle, the discs reach a temperature of 750°C. From there, the cooling efficiency of the brakes is tested. To test the cooling efficiency from that point on, the disk is temporarily cooled to 150°C during the 15th and 16th braking cycles. We then test the last five braking cycles to see if the coefficient of friction level changes - that is, if the brakes are still delivering the same braking force as at the start of the test.
That's great....I'll go that far...(;)
Also, Porsche brakes can be distinguished by the color of the calipers.Black for standard brakes, silver or red for reinforced for S depending on model, yellow for PCCB brakes.The coloring of the
＊Porsche Japan official website "Brake Strategy
My husband, by the way.
The Boxster I bought 3 years ago used to squeal a lot when it was new. I was personally happy because I could feel that "this is the brake of Porsche". But after about 3,000 to 5,000 km, they stopped squealing at all....
He was a little lonely. I guess my husband is a geek after all, "I'd rather have it squeal" when many people say it's a glitch.(lol) By the way, here's the Porsche video "Brake Squeal Explained".
