Super Car Sales System

Chapter 637 Infiniti Q70L ([-])

Chapter 627:
"No wonder I didn't find a mechanical handbrake or an electronic handbrake." When Zhang Chen looked at the central control just now, he saw three knobs, one big, two small, behind the gear lever.

The big knob in the middle is used to switch between four driving modes: snow, economy, normal and sport.

The two small knobs next to it, Zhang Chen recognized as the heating function of the front passenger seat, but he couldn't find the electronic handbrake button or the mechanical handbrake. At that time, he was still depressed because there was no handbrake.

"How does this work?"

"It's very simple, just step on it when parking, and you need to step on it when releasing the parking."

"It's a bit awkward." Zhang Chen stared at the small pedal, "I'm not used to it."

"I like the electronic handbrake. There is a stick next to others, and there are buttons next to me. It sounds high-end, looks luxurious, and saves space on the central armrest." Zhao Daming thinks that the electronic handbrake is better than traditional handbrakes and feet. Brake advanced.

"This really varies from person to person." Fang Yuan smiled helplessly. People like Zhang Chen find it awkward, and some people think it's easy to use. Pedal when parking, and kick again when starting, just in case If you lend your car to someone else, it will be a lot of fun if he doesn't know the function of the foot brake.

As for Zhao Daming's claim that the electronic handbrake is higher-end and more luxurious than the traditional handbrake, Fang Yuan also thinks that it is right, it is indeed quite compelling, but in terms of cost, the car owner needs to pay for the hundreds of dollars more expensive.

"Foot brake or mechanical handbrake, which one is better to use, the electronic handbrake?" Du Xiao's Mercedes-Benz G has a traditional mechanical handbrake, while other models have electronic handbrakes. He is curious about the difference between the three.

"There is not much difference between the three in normal use." Fang Yuan thinks that the foot brake and the mechanical hand brake are more similar, that is, the position of the hand brake is changed from the side of the central armrest to the place where the clutch pedal used to be, which is a bit hidden and makes people feel uncomfortable Can't find it.

The mechanical handbrake is actually a handbrake line such as a steel cable, which tightens the brake to produce a braking effect, so that the car is stuck and fixed.

The principle of the electronic handbrake is similar to that of the mechanical handbrake, except that the action of the owner pulling the handbrake is replaced by a motor.

When the electronic handbrake is started and tightened, the battery supplies power to the motor, the screw rotates, and the parking brake is completed or released by wire winding or other means.

Some models are equipped with electronic handbrakes, without the participation of the car owner. As the car starts and stops, the electronic handbrakes are automatically turned on and off, which is particularly worry-free and trouble-free.

Some time ago, there was a news that a person drove a friend's car and ran for hundreds of kilometers with the handbrake on, and the brake disc was worn red. It was because this person's car had an automatic handbrake, and he didn't usually care about it. He forgot about his friend's car. no.

"Oh, I see. It turns out that the foot brake is almost the same as the mechanical hand brake. It is different from the electronic hand brake in the way of pulling the hand brake. They are essentially the same thing." Fang Yuan explained very thoroughly from the principle to the method. Du Xiao said to himself I understand, but he still doesn’t trust electronics and the like, and thinks they are not as stable and reliable as pure machinery. “Electronic handbrakes look more advanced than mechanical handbrakes, but my Mercedes-Benz G and Land Cruiser are both overpriced. One million, the above is still a traditional mechanical handbrake, probably because of stability considerations, fear of malfunctioning in the wild.”

"Your concerns are very correct. In harsh environments such as high temperature, low temperature, humidity, and flying sand and dust, the mechanical one is indeed more stable than the electronic one, but there is no need to worry about the reliability of the electronic handbrake." Fang Yuan told everyone that the car is used After a long time, when the handbrake line of the traditional handbrake is loose, it has to be pulled very high to be able to stop. Sometimes the brake is not firm when parking on a ramp, causing the car to slip and affect safety.

The major OEMs also know that the handbrake is not an interior panel, and it can save a little bit, which is a terrible safety component.

Therefore, the processors, sensors, and driving actuators used in the electronic handbrake system designed and installed by OEMs are all through large-scale experiments, and the safest and most reliable accessories are selected to ensure the reliability of the system.

The application of fault-tolerant control technology can rely on its own fault diagnosis and compensation when some components fail, so that the system can still complete the control task safely, minimize the failure rate, and do not need to worry about the reliability of the electronic handbrake.

I really don't worry, I usually pay more attention, pay more attention, and ask the auto mechanic to check for myself when maintaining or repairing the car.

"Just now you also said that the electronic handbrake is powered by the battery to drive the motor. What if there is no electricity? Is the electronic handbrake useful when the battery is dead?" Although Du Xiao is not worried about the stability of the electronic handbrake, Still worry, if there is an accident, the whole car loses power, or falls into the river, and the car is flooded by heavy rain. The model with mechanical handbrake can be dragged away when the handbrake is released. What about the electronic handbrake?After all, if some four-wheel drive models are towed, the loss will be great.

"You have considered very comprehensively. The electronic handbrake can only be activated or disengaged if it is powered on. If the electronic handbrake has been activated after parking, even if the battery is dead, the electronic handbrake can still function and continue braking. According to your assumption In these cases, there is really no way. In addition, the car has been left for a long time and the battery is dead, so the car cannot start. Even if the mechanical handbrake cannot be powered on, it can still be pushed by manpower, and then put into first gear to start roughly, but the electronic handbrake will not work. " Fang Yuan nodded in agreement with Du Xiao's opinion, as expected of an old Jianghu who has been in the society for many years, he really considered comprehensively.

However, the mechanical handbrake also has its disadvantages. When driving, if you forget to release the mechanical handbrake, you can still drive away. The example Fang Yuan gave just now is that you don’t know until you smell the burnt smell or someone reminds you. Novice drivers often encounter such embarrassing situations. It's not a problem until you develop a habit later on.

For a car with an electronic handbrake, if you forget to release the handbrake, you will not be able to drive the car away at all, or it will automatically release it, because in the program control process of the electronic handbrake, the precondition of releasing the handbrake must be met before starting. , otherwise it ignores you.

In addition, in the process of driving the vehicle, in case of brake failure, the electronic handbrake also has the function of emergency braking.

This emergency braking is not as simple and rough as a mechanical handbrake. When drifting, it is pulled, the wheels are locked, and cool actions begin.

Through the intervention of ABS and ESP, the braking efficiency can reach 60% of conventional hydraulic braking, allowing the car to stop smoothly, and the rear wheels will not be locked, avoiding the situation of vehicle out of control such as tail flicking, etc. It's an improvement in security.

When everyone nodded in unison, Zhao Daming suddenly came over and asked curiously: "What will happen if I activate the electronic handbrake when the car is driving at high speed?"

"Die." Everyone was amused by Zhao Daming's whim.

"The electronic handbrake is very smart. It knows that it is impossible to activate the electronic handbrake when you are driving at high speed. It will judge that you have misused it, and there is no response at all. Only continuous operation is equivalent to stepping on the brakes, and the car will not stop suddenly. Come down, but slowly reduce the speed of the car, so that you have a reaction process." Fang Yuan advised Zhao Daming not to do this, it will not cause any damage to the car, just be careful of being rear-ended by the car behind.

"I understand that electronic handbrakes and mechanical handbrakes have their own advantages and disadvantages, but I still like electronic handbrakes." Zhao Daming was a little stubborn, "If my car has a mechanical handbrake, I can change the mechanical handbrake to an electronic handbrake. ?"

"It can be changed, but the cost is very high, basically thousands of yuan." Fang Yuan thinks that it is completely unnecessary. To spend the extra few thousand yuan, it is better to buy a few more barrels of good engine oil and a few bottles of gasoline additives.

In addition, the electronic handbrake is very expensive to repair. If the mechanical handbrake becomes loose due to repeated stretching of the handbrake cable, you can remove the bottom cover of the armrest box, find the adjusting nut, and adjust it in a few minutes with a wrench.

It is best to find a professional auto mechanic for the electronic handbrake.

Fang Yuanfang explained everything and solved all Du Xiao's doubts. He looked at Song Guoyuan and said cheerfully, "Brother Song, your apprentice is very professional and powerful."

"Well, my apprentice is really smart and easy to learn." Of course, Song Guoyuan is very satisfied with Fang Yuan. No matter how difficult the car knowledge is, he can memorize it only once.

"Let's continue to look at this Infiniti Q70L." Fang Yuan felt that Du Xiao was looking at him strangely, so he changed the subject and said to Zhang Chen, "Sit on and try the seat."

"Okay." The moment Zhang Chen sat on it happily, his body felt soft and numb, and he immediately smiled happily, turned his head and said to Fang Yuan, "It's so comfortable."

Zhang Chen's feeling is correct. If the seat of the old Infiniti 'Q50' is a bit hard, as a well-known "sofa factory" in China, this higher-level Infiniti Q70L is also a C-class executive model. Its seat is wide, thick, and soft, and the wings on both sides are tall and thick. After sitting on it, the body sinks into it, as if the whole person is wrapped by the seat, and the overall comfort level is comparable to that of the Duke of Tianlai.

In addition, the front of the seat of the Infiniti Q70L also has a manually operated extended leg rest. The extended part can provide very good support for the thighs, and can adjust the seat height and waist support. When running long distances, the sitting posture will be more comfortable and relaxed. Even after driving for seven or eight hours a day, I won't feel sore back and tiredness like falling apart.

Secondly, the chassis of Infiniti's new Q70L adopts the front double-wishbone independent suspension and the rear multi-link independent suspension. The chassis texture is quite good, very solid, and not as loose as most Japanese cars. Pass GTR, skyline, 350Z these national treasures.

The sports-biased suspension is relatively stiff, with good support, and can clearly distinguish the state of the road surface.The suspension is very responsive, and the wheels stick to the ground even on dirt.In addition, because this car has an active noise reduction function, the driving environment in the car is actually very comfortable if you don't drive aggressively, but it will be easy to speed because of the quietness.

In addition, the Infiniti Q70L comes standard with seat heating, electric adjustment of the main and passenger seats, and the original owner installed the seat ventilation himself, which is simply sending thousands of dollars to Zhang Chen for nothing.

Therefore, no matter in terms of comfort or function, the seats of the Subaru BRZ that Zhang Chen looked at were all slammed.

Reluctantly, Zhang Chen straightened up and held the steering wheel. The texture of the leather is very good, the buttons on it are clear and have many functions, and it is much more upscale than the bare steering wheel of the Subaru BRZ just now.

But when Zhang Chen saw the mechanical instrument panel behind the steering wheel, the area of ​​the driving computer in the middle was not much larger than the nail cover. No wonder many functions were placed in the central control. , Mercedes-Benz E level, can't it be equipped with an LCD instrument?
Too low, too out of class.

However, for such a comfortable seat, Zhang Chen decided to endure it.

Zhang Chen rubbed the steering wheel a few times, and suddenly looked at Fang Yuan beside the door: "How is the handling of this car? How is the power?"

"The handling of this Infiniti Q70L is beaten by the Subaru BRZ. The overall steering wheel feels heavy. Even with a 2.5 self-priming machine, the start is a bit weak, which is in stark contrast to the very fast Subaru BRZ, but the acceleration is very linear and the stamina is very good. Absolutely, once the gas pedal is stepped down, it’s like changing a car, the roar of the sports rear row rushes to the face, and the texture of the V6 is still there.” In short, Fang Yuan believes that driving this Infiniti Q70L off the track and Subaru Comparing the lap time and the handling of the BRZ is simply boring, but it has no problem coping with high-speed road conditions.

"That's it." Zhang Chen is right when he thinks about it. For a BMW 70 Series, if the air suspension is replaced, the handling performance will be reduced. An executive model like the Infiniti Q[-]L, even if it is a bit sporty, is completely incomparable with the Subaru BRZ.

Seeing Zhang Chen was a little disappointed, Fang Yuan called him down: "Look at the rear seats and the space."

"What is there to see in the back row?" Zhang Chen was very confused, but he still walked down and followed Fang Yuan to the back.

The moment Fang Yuan opened the back door, he suddenly found that the space in the back row was huge, and the distance between the seat and the front row was astonishingly large. It is estimated that he could still punch several times when he sat on it. Even if Ge You couldn't lie down, It's not a problem to raise one's legs or something.

The only regret is that the raised floor of the rear row is relatively high, and the passengers in the middle have nowhere to put their feet, so either two people sit, or the middle passenger squats like a monkey.

Zhang Chen tried to sit on it, and found that the rear seats were also very soft and comfortable, especially the rear seat cushions were very long, allowing the thighs to be fully supported, which he liked very much.

"Just now I asked you, if your future father-in-law would react when he saw these two cars, look at the rear space, the sunroof above, and the leather interior...you will know. I am I want to do it for you in one step, even considering bringing up a baby in the future." Fang Yuan said with a smile.

Zhang Chen looked around the inside of the car and thought it was true.

Compared with the Subaru BRZ next to it, the interior of this Infiniti Q70L is more refined and beautiful, and the space is larger. Let alone the old man and the others go out together, even if my wife sits in the back with a big belly, it will not be cramped at all. .

With the little guy, it is no problem for the wife to hold him, and put a folding stroller and clothes, diapers, feeding bottles and other baby products beside him.

The space in that Subaru BRZ is too small, the back row is the same as no one, so why not let my father-in-law squat on the roof of the car and my mother-in-law lie on the hood when going out to play or eat?

(End of this chapter)