"A new force in car manufacturing" - the W6 electric SUV launched by WM Motor will be launched at the 2021 Shanghai Auto Show. It is divided into 5 models according to different battery life and configuration, with a price range of 169,800-259,800 yuan. Previously, the New Energy Intelligence Analysis Network studied and determined the technical status of the W6 four-wheel drive version in Turpan, which was in a camouflaged state.
The dimensions of the four-wheel drive version of the Weimar W6 are exactly the same as the two-wheel drive version, with length, width and height of 4620/1847/1730mm, wheelbase of 2715mm, and the curb weight will exceed 1.9 tons (the two-wheel drive version weighs 1.815 tons) . The vehicle design has undergone major changes compared to the previous WM EX5 series and EX6 series models.
The dimensions of the four-wheel drive version of the Weimar W6 are exactly the same as those of the two-wheel drive version, with length, width and height of 4620/1847/1730mm, and wheelbase of 2715mm. The curb weight will exceed 1.9 tons (the two-wheel drive version weighs 1.815 tons). . The vehicle design has undergone major changes compared to the previous WM EX5 series and EX6 series models.
The picture above is a close-up of the technical status details of many sub-systems in the front power compartment of WM W6.
Blue arrow: individually set OBC (AC charger)
White arrow: individually set DCDC (inverter unit)
Red arrow : The 1st generation Bosch iBooster electro-hydraulic integrated braking system
Green arrow: Circulation pipeline rehydration pot for servo electric drive and high-voltage power system, servo power battery thermal management circulation system rehydration pot
Yellow arrow: The water-cooling plate module (high temperature heat dissipation) and heating PTC module of the servo power battery
The picture above is a close-up of the details of the WM W6 electronic control subsystem.
Red arrow: OBC (AC charger) provided by Shenzhen INVT
Green arrow: External and individually set functional components that function as PDU (fuse box)< /p>
Yellow arrow: DCDC (inverter unit) provided by Inovance
Blue arrow: "3-in-1" electric drive system with a maximum output power of 160 kilowatts
< p> In the technical status of the electric drive system of WM W6, you can see the "unique" control strategy settings. DCDCOBCPDU is all set independently, but the overall size of the PDU is greatly reduced. All it provides is to "prepare" the electric air conditioning compressor and PTC control module high-voltage cables.The OBC (AC charger) mounted on the WM W6 is provided by Shenzhen INVT. INVT (Shenzhen INVT Electric Co., Ltd.), since its establishment in 2002, has focused on the two major fields of industrial automation and energy and power, with the goal of "doing its best to provide value-for-money products and services to make customers more competitive." Mission: to provide users with the most valuable products and solutions. The company was listed on the A-share market of the Shenzhen Stock Exchange in 2010 (stock code: 002334). It currently has 15 holding subsidiaries, more than 3,000 employees, more than 40 branches and more than 200 channel partners around the world, and a marketing network all over the world. More than 80 countries and regions around the world.
The DCDC (inverter unit) mounted on the Weimar W6 is provided by Suzhou Inovance United Power. In 2008, Inovance Automotive Electronics Division was established; in September 2016, the 100,000th motor controller product was rolled off the production line, leading the development of the domestic industry. Suzhou Inovance United Power Systems Co., Ltd. was established and began to independently operate new energy automobile parts. business, and reached a strategic cooperation with BRUSA in the same year; in August 2017, it obtained the ISO26262 functional safety management system certificate issued by T?V Rheinland Greater China, becoming the first domestic supplier of electric vehicle motor controller parts to obtain ISO26262 system certification. business.
The "3-in-1" electric drive system of the WM W6 has a maximum output of 160 kilowatts and a maximum output torque of 225 Nm. The vehicle provides three driving modes: economical, comfortable, and sporty, and can accelerate from 100 kilometers to 100 kilometers in 7.9 seconds.
White arrow: the electronic control unit of the "3-in-1" electric drive system
Green arrow: set at the drive motor cooling pipeline interface
Yellow arrow : Steel bracket
Red arrow: DCDC provided by Suzhou Inovance "rested" on the steel bracket
The picture above shows the two sets of circulation pipelines of Weimar W6 Close-up of system.
Red arrow: Water cooling plate control module
Blue arrow: PTC control module
White arrow: Suspected power battery thermal management control system rehydration pot< /p>
Green arrow: Suspected fixed drive and high-voltage electronic control system high-temperature heat dissipation circulation pipeline rehydration pot
Weimar W6 only has one set of PTC control modules, or is dedicated to power battery heating It can manage the low-temperature preheating of the system or be used for low-temperature preheating of the power battery by taking into account the cockpit heating. Comparing the WM EX5 series models, they are divided into the northern cold zone version, which is equipped with an additional set of PTC control modules for cockpit heating; the southern tropical version is only set with one set of PTC control modules for battery low-temperature preheating. It is very likely that the 1 set of PTC control modules set in the Ma W6 is only used for low-temperature preheating of the battery, and the cockpit heating is completed by electric heating PTC.
In terms of braking system, WM W6 adopts the first-generation iBooster electro-hydraulic integrated braking system provided by Bosch.
Red arrow: Master cylinder part of ibooster electro-hydraulic integrated braking system
Blue arrow: ABS valve body of ibooster electro-hydraulic integrated braking system
Yellow arrow: Brake fluid storage tank part
Previously, the New Energy Intelligence Analysis Network published the article "Research and Judgment: The Electric Drive Technology Status of the WM E5 Electric Vehicle Replaced with Mandu iBau" and pointed out that it is suitable for It is equipped with an electro-hydraulic integrated braking system integrated with an ABS valve body provided by South Korean parts supplier MANDU. On the WM W6 model, the electro-hydraulic integrated braking system provided by Bosch without integrated ABS valve body feels very strange.
WM W6 uses a steel H-shaped front subframe to carry the "3-in-1" electric drive system (pointed by the red arrow) and the electric air-conditioning compressor (pointed by the yellow arrow). The Fordson lower A-shaped swing arm and front steering knuckle are both made of steel.
The picture above is a close-up of the front power battery system interface of the two-wheel drive version of W6.
Red arrow: Cable from OBC to charging port
Blue arrow: High-voltage cable from DCDC to power battery
White arrow: Power battery coolant pipe Road interface
It can be confirmed that the ternary lithium battery system adapted to WM W6 uses a 380-volt voltage platform, the battery cells are from CATL, and the power battery assembly is from a company affiliated to WM manufacture. Previously, there have been many cases of fires and explosions in the WM EX5 series models in a short period of time due to problems with the battery cells used.
However, as the third model of Weimar, a "new car-making force", the power battery system uses a 380-volt voltage platform, which means that during 120-kilowatt high-power DC charging, the charging current may be as high as More than 200 amps. This means that the lower battery system voltage platform during high-power charging needs to be replaced by a larger battery, resulting in greater heat generation by the cells and cables and greater differences in cell consistency.
The picture above shows the two-wheel drive version of the WM W6 that is currently on sale. It adopts a torsion beam semi-independent rear suspension setting. There is nothing to comment on.
At the upcoming 2021 Chengdu Auto Show, WM Motor will release a new model with a 0-100 acceleration time of only 1.8 seconds. "Champion WM" is based on the mass-produced WM W6 and has completed a comprehensive upgrade from styling design to power performance. Comprehensive lightweight design covers every part. The all-composite body and fully functional structural design reduce the weight of the entire vehicle to 1,250kg. The battery technology derived from top international competitions provides a maximum discharge power of 1400kw. The all-carbon fiber composite battery case not only significantly reduces weight, but also ensures system safety.
The 400V dual-motor four-wheel drive system provides a maximum power of more than 800kw.
The New Energy Intelligence Analysis Network passed by this "Champion Weima" in Turpan. Unfortunately, it did not notice whether the rear suspension was modified to a multi-link independent architecture and whether the rear drive motor was "3-in-1" setting, whether the power battery system voltage platform has been upgraded to 400 volts.
The author has something to say:
Compared with the WM EX5 series and the EX6 series, the electric drive system of the mass-produced WM W6 has evolved into a "3-in-1" assembly, but DCDCOBCPDU (Parts that perform the same function) are still set up separately and are all outsourced from third parties. The battery system of the 380-volt platform is more advanced than that of the 350-volt model, but performs worse than the 400-volt platform model. Compared with the technical status comparison of mainstream models mass-produced in August 2021, the technical solutions of WM W6 are at a lower level.
In addition, after the accident in which the owner of the JAC NIO ES6 was killed when the "unmanned" driving function was turned on, many "new car-making forces" emphasized that it was equipped with an "intelligent" driving assistance system. I'm afraid the WM W6 will also replace the word "no one".
The above is a personal subjective opinion. All technical calibrations about WM W6 are subject to official information.
Produced by the evaluation team of New Energy Intelligence Analysis Network