Not all cars have S gears in sport mode
Now most of the models of S gear are sports mode, but not all, some cars have a different S gear function.
It's like: most people now say that mobile phones are smart phones with large screens.
But there are also some friends who are still using button machines, also called "mobile phones", which can also make calls, and they can't always be expelled from mobile phones because they are different from the general trend, right?
Here are a few special cases where the S-block is not a sport mode.
For example, after the 2017 Toyota Corolla dual engine switches to S gear, it can be used to adjust the size of the additional braking force with a paddle shifter, which is used to prevent the brakes from overheating and failing in the long downhill section.
There are also Camry and Crown around 2010, and the S block is a hand-in-hand mode.
After the gear is hung to the D gear, and then pushed to the left, it enters the hand-integrated mode, and the gear handle goes up and down, which is equivalent to controlling the addition and subtraction.
And now most of the car's M gear, or called "manual mode" a reason
These models run high-speed with S gear is not so meaningful, not as good as a D in the end to worry.
It is safer to use S block
If our car S gear is really a sport mode, then when driving high speed, you can consider using S gear all the time.
First of all, S gear can make the car drive more vigorously, and when overtaking at high speed, it is faster, which means safer.
Ouyang Guangbin of Pan Asia Automotive Technology Center Co., Ltd., published a paper in the journal "Shanghai Automobile", "Research on the Control Strategy of Sport Sport Mode of Automatic At-model", which was mentioned.
In Sport mode, the transmission control unit delays the timing of upshifts, the timing of early downshifts, and the throttle is more sensitive, resulting in a more aggressive acceleration response than normal mode.
The saying is: when the sport mode is in, the throttle is also stepped on, the car is more energetic, the driving is more fierce, and the overtaking is faster. After drinking coffee, Red Bull suddenly had almost the same mental reason.
I also said in the previous video that when safely overtaking, the time should be controlled at about 7s, and overtaking on the high speed, you need to speed up about 20km/h.
At this time, overtaking with sport mode is obviously more relaxed, which also means more safety.
In addition to the more powerful power system, in the sport mode, many cars will also change the steering feel.
Huang Zhengdan of Chongqing University has a master's thesis, "Research and Implementation of Return Positive and Damping Control Strategies for Electric Power Steering Systems", as mentioned above.
Electric power steering provides damping and increases hand torque at high speeds. Put simply: the steering wheel feels a little heavier.
Like some mechanically assisted, hydraulically assisted cars, sometimes driving high speed, some models will feel that the steering wheel seems to be a bit "fluttering", right?
Electric assist can provide reverse damping, although the direction is more difficult, but when driving high speed is more stable. Many models use this principle in the sport mode.
For example, the Mercedes-Benz sport mode will aggravate the steering feel.
Inside the family car, for example, if the Shadow Leopard switches to sport mode, the screen will also show that the steering feel is aggravated.
More advanced, the sport mode of the BMW M3 can not only change the steering feel, but also make the chassis and brakes more sporty.
S gear does not cost much more oil than D stop
It is good to use S to block the high speed, and many friends are also worried: S block the high speed, which does not cost oil? Right?
In fact, the increased fuel consumption cannot be said not to increase, but it can only be said that it has increased, and we generally can bear it in most cases and can accept it.
Luo Jiaxin of China Automotive Technology and Research Center Co., Ltd. and others published a paper in the journal "Automotive Science and Technology", "Analysis of Vehicle Emissions and Fuel Economy in Sport Mode", which was tested with fuel consumption of 8 cars.
It was found that the difference between the fuel consumption of the sports mode when driving at high speed and the ordinary mode was not large, and the increased fuel consumption of the sports mode did not exceed 10% at a speed of 110 km per hour.
Speaking of people: normal high-speed driving, for example, 7 oils, open the sports mode is 7.7 oils.
It is equivalent to saying that driving 100km is expensive for 5 yuan, the driving experience is a lot cooler, and the safety is relatively better, after all, the face error rate on the highway is not as high as in the urban area.
S block can clear carbon deposits
And S blocking the high speed has an additional advantage: it can remove part of the carbon deposit.
Volkswagen has an invention patent in the United States, US6866031B2 "Direct Injection Internal Combustion Engine" mentioned above: the speed of more than 3000 revolutions, and continuous driving for 20 minutes, can remove a relatively thick layer of carbon deposits.
S-gear cruise engine speed is generally a little higher than D-gear cruise engine speed, you can use this principle to remove carbon deposits.
To put it simply: hang up the S to block the high speed, open a 40km, basically that is, the distance from one service area to the next service area, you can remove a layer of carbon deposits.
Friends who drive more in the city say that if they say that they are on the highway and want to travel on business, they may wish to try such a method to clear the carbon deposit.
When hanging S gear and running at high speed, if you want to have a better effect, you can consider a carbon-clean fuel treasure with PEA ingredients.
In this way, the carbon clearance effect will be better, and it feels good to feel that the strength is still good under the high speed, and my family also sells it.
S gear sport mode, running high-speed hanging S gear is good
In general, as long as our car S gear is in sport mode, running high-speed hanging S gear does have benefits, not only can remove part of the carbon deposit, but also, the less time it takes to overtake.
Relatively speaking, the safety factor is also higher, and the increased oil consumption is actually a few dollars, which I think is still acceptable.
Automatic gear shift, in the end whether to stop and change
Run high-speed want to hang S gear, directly from D gear to S block line can not? Usually when reversing, the car has not stopped, directly changed to R gear, is not a habit of injuring the car?
When waiting for the traffic lights, it has been said for many years, is it hanging N gear or hanging D gear? Should the handbrake be pulled or not?
All kinds of operations, are there any bad cars used now? What are they doing now? Or how do we do it?
Cases, materials, and practical methods related to automatic transmission have been prepared for friends, and it is very simple to see if you want to see it.
Keywords: automatic transmission
Pay attention to my WeChat public account "spare tire car", reply to the keyword "automatic transmission" can be.
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bibliography
Ouyang Guangbin. Research on Sport Sport Mode Control Strategy of Automatic At Model[J].SAIC Motor, 2018.
HUANG Zhengdan. Research and implementation of back-positive and damping control strategy of electric power steering system[D].Chongqing University, 2011.
Wen Yi,Luo Jiaxin,Tian Donglian,Zhu Qinggong. Vehicle emissions and fuel economy analysis in sports mode[J].Automotive Science and Technology, 2020.
[4] Leo Spiegel, Günter Sōhlke, Gerrit Suck.Direct injection internal combustion engine[P]. US6866031,2005.