[Pacific Automotive Network Evaluation Channel] As an”electronic product” that can run Tesla, we have a stronger interest in other aspects of it besides the attribute of”car”. Just like your mobile phone, in addition to calling and sending text messages, you are obviously more concerned about whether its operating system is good enough and whether its battery can be used for long standby times. The same is true for Tesla. The durability of its hardware (such as batteries and motors) and whether software upgrades are in place are all issues we care about.
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In order to see the changes of a”mobile electronic product” in the past few years, we specially found a 2014 Tesla Model S, the oldest in China (inquiry base price|check reference). Make a practical comparison of several major aspects to see if there are obvious changes in the hardware and software of a Tesla that has been in operation for six years.
The two cars compared this time are the 2014 Model S P85 (hereinafter referred to as the old car) and the 2019 Model S long-range version (hereinafter referred to as the new car).
Is the battery and battery life attenuated?
For an electric vehicle that has been driving for 170,000 kilometers for six years, what changes will happen to its battery and battery life after such a long period of use is our primary concern. Conducted a power consumption test. It must be explained here that since the total electric motor power and total battery capacity of these two cars are different, and there are individual differences between the charging piles, this test is not a completely rigorous scientific experiment, but is based on actual measured data. Discuss, the results are for reference only.
First, we came to Tesla’s super charging pile and charged the battery as much as possible. The Tesla Super Charging Pile is a high-power fast charge, with a maximum charging power of 120kW, which can quickly increase the vehicle’s endurance in a short time. However, the fast charging pile will step down when the battery is about to be fully charged, and the charging power will be reduced to below 5kW. At this time, the charging efficiency is already very low.
It needs to be explained that at the end of our actual charging process, the new car shows that the battery life stays at 573km for more than 10 minutes. At this time, the power drops to 2kW, the battery icon shows full charge, and the remaining charging time becomes”calculating…”.
When the battery icon of the old car is not fully charged, the charging power has gradually dropped to 5kW. At this time, the remaining time shows”10 minutes”, but the battery life has stayed at 330km for more than 10 minutes.
We can make a simple calculation. The new car has a range of 573km and is 87km away from the official NEDC range of 660km, while the old car is 172km away from the official NEDC range of 502km at this time. Does this mean that after 6 years of continuous charging and discharging, this Model S, which has driven more than 170,000 kilometers, has seen a significant decline in battery capacity?
In addition, from the central control screens of the two cars, we can also see that the maximum charging currents of the two cars are different. The new car is 72A and the old car is 32A. This means that even in the super charging pile, The charging efficiency of the old Tesla is obviously not as good as the new car due to current limitation.
After clearing information such as subtotal mileage and average energy consumption, we started the power consumption test. During the test, we chose a more power-consuming high-speed section, which contained about 20%of congested road conditions.
Electric vehicles and petrol vehicles have diametrically opposite characteristics in terms of energy consumption. petrol vehicles are more fuel efficient than congested at high speeds, and electric vehicles consume more electricity at high speeds than congestion. There are two advantages to choosing a test environment based on highways. On the one hand, it can shorten the time. On the other hand, it is to see whether the vehicle’s apparent cruising range will be greatly inaccurate under high energy consumption conditions.
The final driving mileage was about 103km, the old car’s mileage was 103.9km, the cruising range was reduced by 111km (from 330km to 219km), and the average energy consumption was 198Wh/km.
The mileage of the new car is 103.3km, the cruising range is reduced by 120km (from 573km to 453km), and the average energy consumption is 172Wh/km.
After conversion, the actual power consumption per 100 kilometers for the new car is 18.21 kWh, and the old car is 22.07 kWh. According to the actual reduction of the battery life after 103km, it can be roughly calculated that the actual battery life of the old car is about 61.0%of the official NEDC battery life (502km), and the actual battery life of the new car is about the official NEDC battery life (660km). 74.5%
Because the new and old cars are different in battery model and capacity, and the power of the new car’s drive motor is much greater than that of the old car , So the new car can only be used as a reference for this comparison.
In spite of this, we can still see that although this six-year-old car has a significantly lower drive motor power than the new car, the actual power consumption is higher than that of the new car, and the battery is even earlier under fast charging conditions. Enter the slow charging state. The actual battery life ratio is more than 10%lower than that of a new car. We cannot yet infer the degradation of battery life, but from the comparison of the above data, it is enough to explain some problems.
Has the car and machine function kept up with the times?
Since Tesla is”an electronic product that can run”, the changes in the car system are naturally also something we care about.
All Tesla models support OTA upgrades, but the updated features will vary for different models or regions. It can be known from the information displayed by the central control system that the software of the two vehicles has been automatically updated to the latest V10.2 version.
As early as September 2019, Tesla began to push the V10 internal test version of the in-vehicle system to a small number of EAP users. The purpose is to let a small number of users experience and collect from the new system before the promotion Real opinions and questions, and continue to make optimizations.
In June of this year, the Tesla vehicle system has been updated to the V10.2 (2020.24) version. The main updates include improvements in driving vision, improved rear-view camera performance, and improved driving recorder viewers. The battery warms up along the way.
This time the car machine upgrade has brought many improvements to car owners. In addition to solving some daily car problems, Tesla has implemented a localization strategy in China. According to the preferences of the Chinese, Tesla has added online games such as Happy Landlord and Happy Mahjong to domestic users, as well as audio software such as QQ Music and Himalaya, and video software such as bilibili, Tencent Video, and iQiyi. Multi-scenario entertainment needs of users.
Although the vehicle system has been upgraded to the latest version, the touch response of the screen has not been significantly slow or unresponsive, but due to the limitations of the hardware itself, the 2014 Model S is a set of six years ago. In terms of performance, it is no longer possible to realize all the functions in the latest version. For example, the lack of cameras at the side B-pillars and the front fenders of the vehicle makes it impossible to monitor the surrounding environment of the vehicle to achieve the 360° panoramic image.
In addition, the communication signal is still 3G. Today, as it gradually enters the 5G era, the 3G frequency band is already a bit weak. For example, the loading speed of map images is obviously slow, and software such as video software that requires high-speed data support is also Therefore it cannot be achieved.
As you can see, the 2014 Model S only supports simple stand-alone games like”2048″, while the 2019 Model S can already realize online interconnections such as”Happy Mahjong” and”Happy Fighting Landlords”. game.
One more thing is worth mentioning. All 2014 Model S models are equipped with AutoPilot. Starting from the 2015 model, this automatic driving assistance system has only appeared as an option, and it has now become a standard. Among the models equipped with AutoPilot, its chips have also been updated.
This makes me think about a question. In the information age with such rapid technological development, the cycle of electronic product replacement is getting shorter and shorter. The 6-year-old Model S in front of me has no mechanical aspects. Severe aging, but the software is already weak. So in five years, when the battery and software of this car are already exhausted, will they face the fate of scrapping and recycling, and lose the possibility of becoming an electric classic car?
Is the acceleration/brake performance still strong?
After observing the changes in the battery, we tested the acceleration/braking performance of this 6-year-old Model S and compared it with the actual test results of the 2014 P85 version in 2014. .
Model S P85’s drive motor has a maximum power of 310kW (422PS) and a maximum torque of 600N·m. This level of power is comparable to supercars. The official acceleration time to 100 kilometers is 4.4 seconds, and the measured data in 2014 was 4.52 seconds. Today, the measured acceleration of this old car is 4.85 seconds.
There is a slight gap in the acceleration results, but the difference is a few tenths of a second. In actual experience, normal people can’t detect it and can basically be ignored. As far as the actual driving experience is concerned, this six-year-old Model S P85 is indeed old and strong. The”switch” is stepped a little deeper, and the suffocating acceleration is immediately released. The powerful torque of 600N·m will hold you firmly in place. On the back of the chair.
In terms of braking, the P85’s tire specifications are 245/45 R19, and the front and rear brake discs are ventilated discs. The temperature on the day of the test was 35°C. The measured braking distance from 100km/h to standstill was 43.10 meters.
The actual measured data in 2014 was 36.88 meters. It can be seen that there is a significant gap of 6.22 meters in the braking data. This is a change that cannot be ignored.
Of course, the difference between the actual measured environmental conditions of the two vehicles also has a slight impact on the results, such as the temperature of the day, the surface material, the degree of tire wear and so on. However, the gap of more than 6 meters still shows that the braking performance has been weakened to a certain extent, which is also a problem that all motor vehicles will have.
What has changed on the surface?
The styling of the Tesla Model S has been designed six years ago, but looking at it now, it is still outdated at all. Except for the adjustments in details, Model S has not changed much in appearance in recent years. The interior also only optimized some necessary places during the 2016 facelift.
In terms of interior decoration, the biggest change is that the center console has been changed from a completely open design to a connected double storage box design (starting from the 2016 model). The improvement of this detail is very practical, because if the sundries in the car cannot be effectively fixed or restricted, slippage will easily occur during driving. In addition to abnormal noise, it may also affect driving safety, especially for this kind of acceleration ability. In terms of powerful electric vehicles.
In terms of driving, this old car does not have an optional variable suspension, so it cannot adjust its softness, hardness, and height. After all, it is a mid-to-large car of nearly one million, and its driving texture is worthy of this price. But this is not the point.
The point is that after 170,000 kilometers of driving, the overall texture and shock filtering performance of the chassis is still very good. Compared with the new car, it is naturally slightly inferior, but there is no loose feeling at all. It was quite out of my expectation that a 170,000-kilometer old car could perform like this.
The steering force is not adjustable, but its steering is a bit heavier than the new car. Even if the new car is adjusted to the sport mode, the electric power assistance of Model S is not all electronic, nor is it blindly light. Especially at low speeds.
In addition, the weight of 2 tons makes it very stable at high speeds, and you can feel the whole car flying tightly against the ground. However, because there is no engine noise, tire noise is very obvious when driving at high speed. Passengers sitting in the back row need to raise their voice when talking to the front row.
Returning to the question at the beginning, is this Model S, which has been driving for six years and 170,000 kilometers, ages? The answer is yes. From the results of our actual comparison, although it is still a car with excellent acceleration performance and chassis texture, it still drives in spirit. But it does have a decline in some aspects, especially in the battery. It can be observed from the charging process that there is indeed a certain attenuation. Secondly, in terms of car machine and driving assistance, like electronic products, the functions are obviously not as new as the new ones. In the age of digitalization, the life span of cars seems to be shortening.
At present, under the temptation of the”unrestricted licenses and no restrictions” policy, most people who choose electric vehicles seem to be just being carried forward by the tide of the times. The user groups of high-end electric vehicles such as Tesla and Weilai are more treated with a mentality of embracing technology to welcome the future. The purpose of this article is to let everyone objectively understand the changes of an electric car after long-term use, not to instigate everyone to reject electric cars. The development of technology will solve many problems, and you have the right to choose. (Photo/text/photo:Chen Ye from Pacific Automotive Network)
Model parameter configuration comparison p>
|● Standard ○ Optional-None|
|Model information:||Model S|
Model S P85
|Manufacturer:||Tesla (import)||Tesla (import)|
|Level:||Medium and large vehicles||Medium and large vehicles|
|Time to market:||2014-01||2019-04|
|Engine:||Pure electric 421 horsepower electric motor|
|Intake form:||–||–||Maximum horsepower (PS):||–||–|
|Maximum torque (N·m):||–||–|
|Maximum horsepower (PS) of electric motor:||421||662|
|Total motor power (kW):||310||487|
|Total motor torque (N·m):||600||844|
|Battery charging time:||Quick charge:None, Slow charge:None||Fast charge:4.5 hours, Slow charge:None|
|Fast charge (%):||–||–|
|Gearbox:||Single speed gearbox for electric vehicles||Electric car Single-speed gearbox|
|Body type:||4-door 5-seater hatchback||5-door 5-seater hatchback|
|Maximum speed (km /h):||210||250|
|Official 0-100km/h acceleration(s):||3.8|
|Measured 0-100km/h acceleration(s):||4.52||–|
|Measured 100-0km/h brake (m):||36.88||–|
|Measured fuel consumption (L/100km):||–||–|
|Measured pure electric battery life Mileage (km):||–||–|
|Measured quick charge time (hours):||–||–|
|Measured slow charge time (hours):||–||–|
|Measured power consumption per hundred kilometers (kWh/100km):||–||–|
|Comprehensive fuel consumption of the Ministry of Industry and Information Technology (L/100km):||–||–|
|Battery warranty period:||–||8 years unlimited kilometers|
|Ministry of Industry and Information Technology pure electric cruising range (km):||502||660|
|Charging time:||Fast charge:None, Slow charge:None||Fast charge:4.5 hours ,Slow charge:None|
|Car warranty:||Four years or 80,000 kilometers||Four years or 80,000 kilometers|
|Front track (mm):||1661||1662|
|Rear track (mm):||1699||1700|
|Minimum ground clearance (mm):||–||120|
|Car weight (kg):||2108||2100|
|Number of seats (pieces):||5||5|
|Fuel tank capacity (L):||–||–|
|Luggage Compartment Volume (L):||745||745|
|Luggage Compartment Maximum Volume (L):||1645 (seat down)||1645 (seat down)|
|Luggage compartment interior Size (mm):||–||–|
|Cargo box size (mm):||–||–|
|Maximum load weight (kg):||–||–|
|Maximum horsepower (PS):||–||–|
|Maximum power (kW):||–||–|
|Maximum power speed (rpm):||–||–|
|Maximum torque (N·m):||–|
|Maximum torque speed (rpm):||–||–|
|Cylinder arrangement form:||–||–|
|Number of cylinders (pcs):||–||–|
|Number of valves per cylinder (pcs):||–||–|
|Air supply mechanism:||–||–|
|Bore size (mm):||–||–|
|Engine Unique technology:||–||–|
|Fuel form:||Pure electric|
|Oil supply method:||–||–|
|Cylinder head material:||–||–|
|Cylinder body material:||–||–|
|Motor type:||–||Front permanent magnet synchronous + rear AC asynchronous|
|Maximum motor horsepower (PS):||421||662|
|Total motor power ( kW):||310d>||487|
|Total motor torque (N·m):||600||844|
|Front motor maximum power (kW):||–||202|
|Front motor maximum Torque (N·m):||–||404|
|The maximum power of the rear motor (kW):||285|
|The maximum torque of the rear motor (N·m):||–||440|
|Drive mode:||Pure electric||Pure electric|
|Number of driving motors:||Single motor||Dual motors|
|Motor layout:||rear||Front + Rear|
|System comprehensive power (kW):||–||–|
|System comprehensive torque (N·m):||–||–|
|Ministry of Industry and Information Technology’s pure electric cruising range (km):||502||660|
|Official power consumption per hundred kilometers (kWh/100km) :||–||–|
|Battery capacity (kWh):||85|
|Battery energy density (Wh/kg):||–||–|
|Battery type:||–||Ternary lithium battery|
|Battery warranty period:||–||8 years unlimited kilometers|
|Battery charging time:||Fast charge:None, Slow charge:None||Quick charge:4.5 hours, Slow charge:None|
|Quick charge (%):||–||–|
|Abbreviation:||Single speed gearbox for electric vehicles||Single speed gearbox for electric vehicles|
|Number of gears:||1||1|
|Gearbox Type:||Fixed gear ratio gearbox||Fixed gear ratio gearbox|
|Driving mode:||Rear-mounted rear drive||Dual-motor four-wheel drive|
|Four-wheel drive form:||–||Full-time Four-wheel drive|
|Central differential structure:||–||–|
|Double wishbone independent suspension||Double wishbone independent suspension|
|Rear suspension type:||Multi-link independent suspension||Multi-link independent suspension|
|Steering assist type:||Electric power assist||Electric power assist|
|Car body structure:||Carrier type||Carrier type|
|Front brake type:||Ventilated disc||Ventilated disc|
|Rear brake type:||Ventilated disc type||Ventilated disc type|
|Parking brake type:||Electronic parking||Electronic parking|
|Front tire specifications:||245/45 R19||245/45 R19|
|Rear tire specifications:||245/45 R19||245/45 R19|
|Spare tire size:||None||None|
|Spare tire size:||–||–|
|Approach angle (°):||–||–|
|Departure angle (°):||–||–|
|Vertical Passing angle (°):||–||–|
|Maximum climbing degree (%)/climbing angle (°):||–||–|
|Minimum ground clearance (mm):||–||120|
|Minimum turning radius (m):||5.65||–|
|Maximum wading depth (mm):||–||–|
|Brake force distribution (EBD/CBC etc.):||●||●|
|Brake assist (EBA/BAS/BA, etc.):||●||●|
|Traction control (ASR/TCS/TRC, etc.):||●||●|
|Car body stability control (ESP/DSC/ESC Etc.):||●||●|
|Tire pressure monitoring device:||●Tire pressure alarm||●Tire pressure display|
|The seat belt is not reminded:||●Front row||●Front row|
|Lane Departure Warning System:||–||●|
|Lane Keeping Assist System:||–||○|
|Active brake/active safety system:||–||●|
|Road traffic sign recognition:||–||○|
|Tired driving tips:||–||–|
|Night vision system:||–||–|
|Front front airbag:||Main●/Vice●||Main●/Vice●|
|Front/rear side airbags:||Front●/Rear-||Front●/Rear-|
|Front/rear head airbag (air curtain):||Front●/Rear●||Front●/Rear●|
|Front knee airbag:||Main●/Vice-||Main-/Vice-|
|Pedestrian collision protection system:||–||–|
|ISO FIX child seat interface:||●||●|
|Engine electronic anti-theft:||●||–|
|Car central control lock:||●||●|
|Key type:||●Remote control key||●Remote control Key|
|No key Start the system:||●||●|
|Keyless entry system:||○||●|
|Cruise system:||● Cruise control||● Full-speed adaptive cruise|
|Front/rear radar:||Front ○/Back ○||Front ●/Back ●|
|Parking image system:||●Reversing image||●360-degree panoramic image|
|Vehicle side blind area image system:||–||–|
|Reversing dynamic reminder system:||–||–|
|Driving mode switching:||●rong>Standard/Comfort
|Terrain mode switch:||–||●Snowfield|
|Engine start-stop technology:||–||–|
|Automatic driving assistance:||–||○|
|Variable suspension:||–||Soft and hard + height adjustment|
|Integral active steering system:||–||–|
|Front axle limited slip differential/differential lock:||–||–|
|Central differential locking function:||–||–|
|Sunroof type:||●Single sunroof
●Openable panoramic sunroof
|●Cannot open panoramic sunroof|
|Skylight size (mm):||–||–|
|Sports Appearance kit:||●||–|
|Aluminum alloy wheels:||●|
|Electric closing door:||–||–|
|The trunk induction opens:||–||–|
|Electric trunk position memory:||–||●|
|Steering wheel material:||●Leather||●Leather|
|Steering wheel adjustment range:||Up and down + Front and back||Up and down+Front and back|
|Electric steering wheel adjustment:||●||●||Multifunctional steering wheel:||●||●|
|Steering wheel shift:||–||–|
|Steering wheel heating:||–||●|
|Steering wheel memory:||–||●|
|Driving computer display function:||●Driving information
|Full LCD dashboard:||●||●|
|LCD dashboard size:||–||–|
|HUD head-up digital display:||–||–|
|Car driving recorder:||–||●|
|Mobile phone wireless charging:||–||–|
|Seat material:||Fabric||Leather/fabric mix Take|
|Sports style seat:||○||●|
|Front seat height adjustment:||●Driver’s seat||●Front row||Front seat cushion inclination adjustment:||–||●Front row|
|Front row lumbar support adjustment:||●Driver’s seat||●Front row||Front row shoulder support adjustment:||●Driver’s seat||–|
|Main/passenger seat electric adjustment:||Main●/Deputy●||Main●/Deputy●|
|Co-pilot seat Electrically adjustable rear seat:||–||–|
|Rear seat adjustment:||–||–|
|Electric adjustment of rear seats:||–||–|
|Electric seat memory:||●driver’s seat||●driver’s seat|
|Comfortable in and out of steering wheel/seat:||–||–|
|Front/rear seat heating:||front●/rear○||front●/rear●|
|front/rear Seat ventilation:||Front-/Rear-||Front-/Rear-|
|Front/rear seat massage :||Front-/Rear-||Front-/Rear-|
|The rear seat is down style:||Proportion down||Proportion down|
|The third row of seats:||–|
|Front/rear seat center armrest:||Front ●/back-||front●/back-|
|rear cup holder:||–||●|
|Air conditioning adjustment method:||●Auto||● Automatic|
|Temperature zone control:||●Dual zone||●Dual zone|
|Independent air conditioning in the rear:||–||–|
|In-car PM2.5 filter device:||●|
|Car air purifier:||–||–|
|Low beam light source:||Xenon||LED|
|High beam light source:||Halogen||LED|
|Adaptive high and low beam:||–||●|
|Day Interval driving lights:||○||●|
|Turn assist lamp:||–||–|
|Fog lights (AFS):||–||●|
|Front fog lights:||○||●|
|Headlight rain and fog mode:||–||–|
|Headlight height adjustable:||●||●|
|Headlight Cleaning device:||–||–|
|Headlights turn off delay:||–|
|Car ambient light:||○||●|
|●All cars||●All cars|
|One key to raise/lower the window:||–||●Full car|
|Car window anti-pinch function:||–||●Full car|
|UV protection/Insulation glass:||●||●|
|Electric adjustment of rearview mirror:||●||●|
|Exterior mirror heating:||○||●|
|Automatic folding of rearview mirror:||○||●|
|Automatic folding of rearview mirror lock:||–||●|
|The rear-view mirror automatically turns down when reversing:||–||●|
|Rearview mirror memory:||○||●|
|Automatic anti-glare inside/outside rearview mirror:||Inner○/Outer○||Inner●/Outside●|
|Rear side sun shade:||●Manual||–|
|Rear side privacy glass:||–|
|Sun visor vanity mirror:||●Main driver||● Main driver+lights
|Front windshield washer fluid nozzle heating:||–||●|
|The large color screen of the center console:||●||●|
|The large screen size of the center console:||17 inches||17 inches|
|Central control screen operation mode:||–||●Touch control|
|GPS navigation system:||●||●|
|Real-time traffic information display:||–||●|
|Mobile phone interconnection/mapping:||–||–|
|Internet of Vehicles:||–||●|
|Road rescue call:||–||–|
|Voice recognition control system :||–||●Multimedia system
|Central control LCD screen split-screen display:||–||–|
|Back row LCD screen:||–||–|
|Back row central control system:||–||–|
|220V/230V power supply:||–||–|
|12V power interface of the trunk:|