FAW Volkswagen ID.4 Crozz Electrop, one of the first models of the domestic mass production under the MEB architecture. The car has a total of three configurations, and the two-driven version of the model is set by pure electrical continuation and driving motor, and the NEDC is still 400 and 550 kilometers. The power battery loading and electricity is 55 degrees and 84.8 degrees; The four-driven version of NEDC is 500 kilometers, and the power battery is loaded with 84.8 degrees, and all NCM8 high nickel square shell batches provided by Ningde Times are used.
Id.4 Crozz has a length of 4592 \ 1852 \ 1629mm, the shaft distance is 2765mm, and the vehicle is reorganized from 2.15 tons. The test drive model is a long-term connection to the public Id.4 crozz, which is adapted to 1 maximum output power of 150 kW, the maximum torque is 310 Nm-electric drive assembly. The maximum output power of the drive motor after the relative ID.4 Crozzz standard endurance is 125 kW. ID.4 crozz high-performance four-wheel drive veneration asynchronous sensing drive motor, maximum output power 100 kW, rear 125 kW permanent magnet synchronous motor (150 kW), total maximum output torque is 460 Nm. 
New Energy Intelligence Analysis Network will have an electrical state, front suspension, and charging power of ID.4 crozz back-driven version of the ID.4 Crozz Key research and judgment.
The above figure shows the Id.4 Crozz scaled the power cabin individual system technical status detail close-up (other models are also identical).
Red Arrow: Air-conditioning assembly (including blower, airway, etc.) 
Yellow arrow: full vehicle heat management circulation pipe lysque [123 ]
Blue Arrow: Iboost
FAW Volkswagen ID. 4 Crozzz model is very clear, first define the “maximization of space utilization” and “forward development” electric Chemical model platform, then power electricityPool system and drive technology. In order to improve the cockpit space, the low floor setting is used and the air conditioning system is moved to the powertrain.
At the lower end of the air conditioning system of the powertrain, the electric air conditioner compressor and 2 sets of PTC control modules based on the principle of heat pump are set, and the PTC module of the cocktail warmer is about X kW, the power battery is low. The thermal PTC module is approximately X kW); the water-cooled plate control module (high temperature heat dissipation) of the servo power battery heat management system is set in the lower end of the hydraulic pot.
Id.4 Crozz can be installed in the form of a heat pump air conditioning system for cockpit cooling, power cell preheating, and heat dissipation. In the summer, the heat pump air conditioner compressor supplied by South Korean hanon system directly cools the cockpit and indirectly for power cells with high temperature heat dissipation servo by the water-cooled plate control module. In the winter of electric vehicle, Hanon System heat pump air conditioning compressors transfer the “cold amount” of the outside and “heat” generated in this process for cockpit heating and power battery low temperature preheating. Servo.
The relatively general thermal air conditioning system is different from -15 degrees Celsius, and ID.4 Crozz can continue to work at -30 degrees Celsius.
In a conventional “BBA” model, the engine electric control unit (ECU) provided by Bosch, a throttle body , Oxygen sensor and ABS / ESP system. However, the IBOOST electro-hydraulic integrated brake pump adapted on the id.4 Crozz model is provided by ZF.
It is to be noted that the Id.4 Crozz mounted ZF iBOOST electro-hydraulic integrated brake head pump and the separate ABS / ESP valve body, even the adaptive shock absorbing system is provided by ZF.
In order to increase the length of 4592 mmid.4 Crozz in stenosis space control flexibility, the front wheel chamber cover of the body welding is inward. The setting of “tilt” can make the front wheel steering angle larger.
Red Arrow: Body Welded Route Housing Welding The State “Tilt” State
Yellow Arrow: The front wheel outward steering
Blue arrow: front rotation The steering angle increases
The above picture shows the status detail of the id.4 crozz front suspension technology.
Blue Arrow: Aluminum Material Forward Steering Festival
Yellow Arrow: Type A Save arm upper welding
Red arrow: A-type lower spring arm lower part welding strengthen Board 
Id.4 Crozz’s model platform is a forward research and development, and the front and rear sub-frames use a frame structure, the front suspension is the McFesson independent architecture, and the rear suspension is a multi-link independent architecture, and The vibration generated when the carrier electrical drive system is accelerated and the emergency deceleration is suppressed.
The above picture shows the status detail closest of id.4 crozz front suspension technology.
Blue Arrow: Aluminum Material Forward Steering Festival
Yellow Arrow: Type A Save arm upper welding 
Red arrow: A-type lower spring arm lower part welding strengthen Board
Id.4 Crozz’s model platform is a forward research and development, and the front and rear sub-frames use a frame structure, the front suspension is the McFesson independent architecture, and the rear suspension is a multi-link independent architecture, and The vibration generated when the carrier electrical drive system is accelerated and the emergency deceleration is suppressed.
The models under the MEB architecture support soft bag ternary lithium batteries and square three-dimensional lithium batteries, ID.4 Crozz is selected It is the NCM8 three-dimensional lithium battery provided by Ningde Times and is responsible for adapting battery assemblies and thermal management control strategies. Id.4 Crozz’s power battery assembly is loaded with 84.8 degrees, and the system energy density is 175WH / kg, which has independent high temperature heat dissipation and low temperature preheating servo systems.
Compared to other domestic brand models of 8-Series High Nickel Battery System, the energy density of the power batteryAll over 180Wh / kg or higher, and ID.4 Crozz’s power battery assembly energy density is 175Wh / kg, or it means that the public will use more weight to protect the mica filler of the battery, high temperature BDH. Materials and laying more circulatory lines.
For the industry generally begins to turn from 8 high nickel-based batteries to the batch application of nickel batteries in the 5-strand, FAW Volkswagen ID .4 Crozz will choose to solve security issues in the security issues. 
Id.4 Crozz’s internal space optimization is still based on the model platform, in order to strengthen the front roller leg space, turn the air conditioner system into the power chamber; straight The rear floor increases the comfort of 2 + 1 occupant, blue white coloring interior, reduces long distance driving fatigue, more settings are based on human machine.
ID.4 Crozz’s driver with a display, used to output simple driving data and simple navigation information (referred to as red arrow); knob The gear system is “close” with the driver’s display (the yellow arrow is referred to), in addition to the D \ N \ R block, add the R-stop for adjusting the energy recovery level; the central display (referred to as the blue arrow) output More content for entertainment, navigation and driving.
From driving data, these total mileage is less than 500 kilometers of ID.4 crozz, “idle” state power consumption is 0.3 degrees / 100 kilometers; Open the cockpit air conditioner refrigeration mode power consumption of approximately 1.2 degrees / 100 kilometers.
Need not to note that after 500 kilometers of complex and without regularity, the integrated power consumption of ID.4 Crozz is 18.8 degrees / 100 kilometers, and the actual endurance mileage is about 451 kilometers.
FAW Volkswagen is ID.4 Crozz “fast charge” power is 100 kW, “slow charge” power is 7.2 kW. The system’s self-default power battery charging SOC value is 80 percent, but can be manually adjusted to 90% and 100%. In view of Tesla and Jianghuai Wei to prevent largeThe power “overshoot” triggers a fire burning accident, and the force-to-limit power battery is charged with a maximum SOC value of 90%. FAW Volkswagen ID. 4 Crozzz and Zhaoqing Xiaopeng P7 are more user-friendly to open to the owner’s independent choice of SOC value.
When ID.4 Crozz is listed, the Cams charging service scheme for the owner is released. However, in order to feel the charging compatibility of ID.4 Crozz, it is tested in a DC charging pile of a third-party construction and a maximum power of 80 kW.
Note: The outdoor temperature at the time of DC charging test on id.4 crozz is about 34 degrees Celsius, and the maximum temperature surface is about 96.4 degrees Celsius, and the test time is 12:30.
After 1 minute of DC fast charge, the power battery SOC value is 71 percent, the charging voltage is 385.3 volts, the charging current is 189, and the charging power is 72.8 kW.
After 1 minute of DC fast charge, the power battery SOC value is 71 percent, the charging voltage is 385.3 volts, charging current 189 security, charge power 72.8 kW.
After 1 minute of DC fast charge, the battery monomer is 23 degrees Celsius, the lowest temperature of 23 degrees Celsius, the battery monomer allows the highest electricity 4.2 volts, electricity The maximum voltage of the core monomer is 4.1 volts.
After 5 minutes of DC fast charge, the ID.4 Crozz cell temperature was maintained at 23 degrees Celsius, and the electrical core voltage was maintained at 4.1 volts, and the charging power fluctuated between 72-76 kW. According to the charging test process, the voltage platform used by ID.4 Crozz is 380 volts, the maximum tolerated voltage of the battery is 4.2 volts, and the safety charge voltage is 4.1 volts.
The maximum charge power allowed by the charging pile end, the temperature of the power battery cell has not changed in moderately at the same time, the high temperature heat dissipation function in the power battery heat management system No open. Although Id.4 Crozz is only 1 coldHowever, the liquid supplementation pot is actually a single temperature (90 degrees Celsius or higher), and is set separately from the driving, electric control, and the cockpit heating air conditioner; the temperature demand is low (15-20 degrees Celsius intervals) The power battery circulation line is set separately, and “opening” or “closed” is controlled by 1 set of “3 pass” solenoids, thereby reducing the cooling liquid loading, simplifying the structure and weight of the circulating line.
The acceleration time of 8 seconds of 0-100 km / h should not be defined as an important technical point, inheriting the Volkswagen model. At the same time, it emphasizes the comfort of the front and rear collections. Taking care of the price, life, and the performance of the Id.4 Crozz, it is still holding the driving fun of the driving model.
When most speed intervals (not above 60 km / h) are accelerated, the body is trained, and there is no universal existence after driving. Excessive phenomenon, adaptive suspension gives the body attitude.
As a traditional automobile big factory, there is no intelligent driving function of “radical”, lane maintenance, automatic heel, and more abundant driving data in HUD. To keep the ID.4 Crozz’s driving safety in a high state.
Currently, in China, there are generally no smart driving functions as the technical point of driving safety and battery safety. Instead, those “new forces” without terminal market reliability verification, insisted that the radical smart driving function can be raised in the product increments.
To know, there will be no application of the corresponding laws and regulations in the next 3-4 years, before the launch of the corresponding laws and regulations, the conservative “of the traditional vehicle factory” The radical contrast allows more ways to retreat to the choice.
The author has something to say:
Listening to the market later, selling a multi-system technology applied by the FAW Volkswagen ID.4 Crozz, which is 1.99-27.99 million yuan, relatively 20The domestic mainstream models listed before 22 years are in a leading state. Maximum speed 16000 rpm, rear electric drive assembly based on flat line “card” winding technology; perfect power battery assembly and thermal management control strategy; use ZF’s iBooster + ABS / ESP brake system substitute commonly used BOSCH scheme driving high security; “four-wheeled four-angle” car large space; heat pump air conditioner and adaptive shock absorption, it has played an important role in reducing power consumption, extending battery life.
Industrial design is impossible to do perfect, id.4 crozz is also the same: four-wheel-free version of Id.4 Crozz, pre-asynchronous sense electric drive system, so that the whole vehicle can only accelerate and ice and snow mode (low speed) ) Can activate the electric four-wheel drive system; whether the safety hazard of the 8-Series battery can be made by the thermal management control system; the performance of the adaptive shock absorption system in the warranty period of the whole vehicle; the huge third part of the national power grid, special electricity, etc. The compatibility of the charging facility needs to be presented in the subsequent relative long test.
FAW Volkswagen ID.4 Crozz uses ZF IBOSTER + ABS / ESP brake system to replace the bus high security of the BOSCH scheme, is it in advance? After all, the out-of-control accident in Tesra Model 3 is huge for brand damage. 
Not complete. . . .
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