In April 2020, Japan Toyota’s Lingzhi (Lexus) UX300E Electric SUV was officially launched, a total of two models, priced at 36.2-38.5 million yuan. This model has also become the first electric car sold in Toyota Lingzhi in the Chinese market. Toyota Lingzhi UX300E Electric SUV uses a pre-dynamic front wheel drive form (without four-drive version), the maximum output power of 150 Nm, the maximum output torque is 300 Nm; matching 1 set of 350 volt voltage platform Lithium power battery assembly (the battery is supplied from Panasonic), loaded with 54.35 degrees of electricity, NEDC endless mileage 400 km; long width high 4495/1840 / 1545mm, axial distance 2640mm.
Need to note is that the Japanese Toyota Lingzhi UX300E electric SUV, which enters the Chinese market, the loaded power battery assembly is adapted to 1 new thermal management technology and control Strategy. That is, air is used as a medium carrying “cold amount”, and the air-conditioned air will pass through the air-conditioned air through the blower “pump” to the power cell assembly around the battery module, for the battery module (battery cell High temperature heat dissipation servo. By the electric heating system, a low-temperature preheating servo is lowered for the module (battery cell) inside the power battery. 
This article will focus on Japanese Toyota Lingzhi UX300E electric vehicle with power battery “air cooling” heat dissipation and electric heating function, low temperature environment with lowest -16 degrees Celsius at ambient temperature Study and determination of DC fast charge efficiency.
When DC charging in Beijing-Cheng Express National Power Grid Charger, “flameout “The status of Toyota Lingzhi
UX300E (Parameters | Picture) Electric SUV is studied in basic technical status. 
The figure shows the dynamic cabin of Toyota Lingzhi UX300E Electric SUV. 
Blue Arrow: DCDC + Drive Motor Control “21 “Head
Red Arrow: Wai Bastik PTC Control Module
White Arrow: Suspected OBC (Charger)
Yellow Arrow: Driving Bank PTC Circulation Tube Rifting Liquid
Green Arrow: Drive Motor, “2 – in 1” Electric Drive Control Assembly, OBC Shared Circulation Pipe Filling Pot
When the Toyota Lingzhi UX300E performs DC fast charge, the temperature change of each division system in the power cabin is monitored by the thermal imaging. At this time, the cockpit PTC control module (white arrow) and the cockpit PTC circulation pipe fixture ( The temperature rise of the blue arrow is more obvious, the maximum temperature is about 2 degrees Celsius.
What is needed is that Toyota Lingzhi UX300E Electric SUV is fast-charged, in “parking”, “flameout”, “lock door “Completely power-down state. At this time, the PTC control module (Webester) of the air conditioner warming servo (provided) circulating circuit coolant temperature is around 20 degrees Celsius for the cockpit. It is derived from the driver to save power. Turn on the windshield defrost function and set the temperature to 26 degrees Celsius.
Since Toyota Lingzhi UX300E Electric SUV power battery uses air as a “air cooling” heat dissipation mode and electric heating system of the cooling medium, therefore In the powertrain, a coolable power battery is used alone, a high temperature heat dissipation and a low temperature preheating circulation line.
Interesting is Toyota, which is sold in the Chinese market Ling Zhi UX300E Electric SUV, the PTC control module for cockpit air conditioning system is purchased to Weibu, not Toyota’s traditional supplier electric equipment manufacturing. It is also necessary to know that this group of Weibi St. manufactured PTC control module, also used for Changan New Energy manufacturing
ET (parameters | picture) electric vehicles, as well as other domestic brand models.
The picture above is Toyota Lingzhi UX300E McPherson pre-suspension detail status close-up. Close-up.
Red arrow: Steel lower arm 
Blue arrow: minusPrane and spring
Yellow arrow: Steel pre-steering section
The picture above shows Toyota Lingzhi UX300E double cross arm post-suspension details close-up: [123 ]
Red Arrow: Post Multiple Link Steel
Yellow Arrow: Power Battery Module
Blue Arrow: Power Battery Soldboard
Toyota Lingzhi UX300E adopts the same ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Toyota Lingzhi UX300E did not adopt a dedicated electric vehicle platform, but in the foundation of Toyota Lingzhi UX300 fuel model, “oil reform” attempts. The power battery assembly referred to by the red arrow can be seen by the red arrow highlights the body welding (the yellow arrow is referred to), resulting in further reduction of the ground gap, and there is no way to achieve a full chassis design. Toyota Lingzhi UX300E adopted “oil to electricity” design concept, for the smallest cost for better market share.
2, Japan Toyota Lingzhi UX300E electric SUV low temperature DC fast charge efficiency:
From the Han EV four-wheel drive version, from Chengde City, along Beijing After driving in the direction of Beijing for a while, Toyota Lingzhi UX300E electric vehicle entered the 120 kW charging pile built by “hot car” to repair DC charging.
After 4 minutes, the information comparison of Toyota Lingzhi U300E Electric SUV is 1 degrees Celsius, at this time, at this time. For -16 degrees Celsius right.
After 5 minutes of charging, Toyota Lingzhi U300E electric SUV charge current is 49.3, the charging voltage is 469.6 volts, and the charging power is approximately 23 kW.
After charging for 23 minutes, when Toyota LingzhiUX300E adapted three-dimensional cell temperature increased by 1 degrees Celsius to 2 degrees Celsius, the charging current is less than 50, and the charging power is 25 kW. 
This maximum charge power 50 kW Toyota Lingzhi UX300E electric car is only 25 kW at a low temperature environment, even with a high-power fast charge in the “hot car” state, it is also charged for more than 20 minutes. There is no significant increase in the temperature during the process.
Since Toyota Lingzhi UX300E powertrain uses air from air-conditioning system, “pumped”, the air conditioning system is directly dissipated, and the control strategy of electric heating. Even in the hot car state, Toyota Lingzhi UX300E power battery system, first can’t be effectively enhanced at a low temperature environment; secondly, it cannot be carried out in time. Therefore, it is affected by the ambient temperature, and the fast charge is carried out at 120 kW DC charging piles, and it is difficult to effectively preheat the nominal 50 kW charge power.
The picture shows the power battery structure of Toyota Lingzhi UX300E Electric SUV.
Red Arrow: A blower fixed inside the power battery assembly
Yellow Arrow: Air Treatment around the outer side of the battery module 
Green arrow: battery die Internal end
Blue Arrow: The external end of the telecommunications module
“Empty-cooling” high-temperature cooling technology in Toyota Lingzhi UX300E Toyota CHR (parameter | picture) EV is the same. It can even be said that the CHR EV’s vehicle driver architecture is exactly the same as Toyota UX300E.
Japan Toyota UX300E Electric SUV adapted power battery “air-cooled” heat dissipation control strategy, can effectively heat dissipation of the outer end of the horizontal arrangement, and the inside of the module (Longitudinally) The heat is not very effective, it is easy to form a “temperature difference” in the outer end of the battery module, which constitutes a certain hidden danger for driving safety in the summer high temperature environment. However, the upper limit of the charge power limit of 50 kilowatts can be effective in balance the load of 54.35 degrees, the maximum charge.A balance between driving safety caused by electricity and thermal out of control.
However, Toyota Lingzhi UX300E and the “air-cooled” heat dissipation and electric power battery control strategy used by GAC Toyota CHR EV are very limited in the lifting efficiency improvement in low temperature environments. Combined with the “oil-modified” design idea of the vehicle, the electric heating technology of Leng Zhi UX300E is equivalent to electric cars with the Chinese local brand in 2016, and the electric vehicle using the air-cooled battery control strategy.
3, Japan Toyota Lingzhi UX300E compared to China BYD Han EV four-wheel charge-free charge efficiency comparison: 
There are only two-wheel drive version, equipped with three yuan Lithium battery system loading power is 54.35 degrees, using “air-cooled” heat dissipation and electric heating control strategy, Toyota Lingzhi UX300E, Toyota Lingzhi UX300E, the highest price of 385,000 yuan, design and charge power is 50 kW, which is only 25 kilowatts in winter low temperature environment.
All-Series two-drive / quasi-plate, equipped in the blade battery system is charged at 77 degree electricity, and the highest price of China BYD Han EV with low-conductivity professional coolant high temperature heat and low temperature preheating control strategy 2795 million yuan, design charge power is 150 kW, the low temperature environment in winter can reach 55 kW.
The BYD Han EV uses a 560 volt voltage platform when charging the Lingzhi UX300E, using a 560 volt voltage platform, the blade battery system Han EV battery temperature can rise to 14 Celsius. 350 volt voltage platform, three
yuan (parameter | picture) lithium battery system Level UX300E battery can only rise to 2 degrees Celsius.
On the top a few days, Toyota’s words Toyota Zhangnan said in the annual meeting of the Japanese Auto Manufacturer Association. The electric vehicle is over-hype, the government does not take into account the carbon dioxide emissions from the power generation process; there is no social electricity in the number of electric vehicles, which does not take into account the transformation of the blind electric car will harm the consumer rights, because Electric cars are more expensive than fuel cars; there is no huge, considering large-scale infrastructure needsThis; no unemployment in the traditional automotive industry caused by blindness of the fuel truck. 
In fact, all resources rely on sea transportation Japan, has been adhering to the fuel cell and the HEV technology that is focused on energy saving, which is thoroughly changing the traditional automotive technology route and the previous The traditional automobile technology accumulated for decades must completely abandoned the EV technology, which is not a strong item in Toyota, Honda, Mitsubishi, Fuji, and Mazda.
By comparing Japan Toyota in China, FAW Toyota and Guangqi Toyota, which launched a AION series and IX series renovatis car based on GAC new energy mass production, in 2020, and 2016 Brand EV models Technical status equivalent, the original taste of Toyota EV model, Toyota, does not pay attention to EV technology and vehicle application. At least in 2014-2020, China’s new energy system has burst out, and it has become a developing dynamic grasp of the largest market development of EV models, and Japan is far away from the United States.
There is something:
Toyota Lingzhi even as the high-end luxury model of Toyota brand, based on the lag of its own in the new energy vehicle sector, the overall competitiveness of the new energy products currently launched Other domestic brands are relatively backward, not only without its own exclusive new energy vehicle exclusive platform, but also in the way in the whole vehicle heat management system is relatively backward. In 2020, it is now coming, and new energy vehicles that still use this crude “oil change” model can actually reflect the lack of reserves for new energy technology.
In addition, the author is very willing to see the opposition of Toyota on the development of the Japanese automotive industry. Even if I want to see, Toyota, Honda, Mitsubishi, Nissan, Mazda will not invest too many costs to vigorously adhere to the new energy core technology, and the whole car Platform and the entire industrial chain market.
After all, the current Japanese Navy is equipped with the dragon “of the dragon” lithium sulfur submarine, which is equipped with the extension provided by Toyota, Toshiba, Tang Shallow and other manufacturers. Moving technology, not relying on air spacer and lithium sulfurPower battery and control strategy; Japanese Army has been a 105mm diameter wheel assignant and crawler technology for increased rotary hybrid techniques composed of Toyota, Mitsubishi, and Safe Song, lithium battery system. The car is tested.
New Energy Intelligence Analysis Network Evaluation Group