Shenzhen VMAX New Energy Group Co., Ltd.

The 2-in-1 integrated on-board charging system (2-in-1 CCU) integrates the on-board charger (OBC) and the DC-DC converter (DCDC) into a single enclosure, sharing the housing and cooling system to reduce size and cost. The product covers 48V/400V/800V voltage platforms with power ranging from 2.2kW to 22kW, meeting the charging and power supply needs of various vehicles.

Integrated OBC+DCDC 2-in-1 architecture; power levels covering 2.2kW/3.3kW/6.6kW/11kW/22kW; voltage platforms covering 48V, 400V and 800V; shared housing and cooling system with high integration and light weight; supports wide voltage output range to fit different vehicle models.

• On-board charging and low-voltage supply for electric passenger vehicles
• Power system integration for industrial electric vehicles
• New energy vehicles with 400V/800V high-voltage platforms

The 3-in-1 integrated on-board charging system (3-in-1 CCU) further integrates on the basis of the 2-in-1, combining OBC, DCDC and motor controller (MCU) into one multi-function unit, sharing the housing and cooling system and even power devices, significantly reducing product cost and size. Based on the AUTOSAR software platform and functional safety design, it supports Ethernet transmission, OTA intelligent upgrade and network security protection.

OBC+DCDC+MCU 3-in-1 integrated architecture; power levels covering 6.6kW/11kW (400V platform); shared housing, cooling system and power devices; supports AUTOSAR software platform, functional safety design, Ethernet communication and vehicle-wide OTA upgrade.

• Highly integrated power and drive system for electric passenger vehicles
• Vehicle models requiring lightweight design and cost control
• New energy vehicles with 400V high-voltage platform

The VMAX standalone on-board charger (OBC) adopts high-frequency digital control technology, with an integrally die-cast housing and patented 3D water-channel design, offering high power density, good heat dissipation and easy vehicle integration. It features comprehensive abnormal protection and EMC design, supports the CAN 2.0B interface and standard UDS diagnostics, with software upgradeable online and customizable charging strategies.

AC input voltage 90-264VAC/45-65Hz, maximum input current 32A, power factor ≥0.98; DC output 230-450V, rated output power 6.6kW, maximum output current 22A, average efficiency 94%; discharge mode rated output 3.3kVA; liquid-cooled, operating temperature -40~85℃, weight 5.5kg, volume 279*202*68mm, protection rating IP67.

• AC on-board charging for electric passenger vehicles
• Vehicle-to-load (V2L) discharge applications
• Adaptation to different models with wide voltage range

The VMAX standalone DC-DC converter (buck DCDC) adopts high-frequency digital control technology, providing highly safe electrical isolation between input and output, and complying with automotive-grade EMC requirements. It features over-voltage, over-current, over-temperature and short-circuit protection, comes standard with CAN 2.0B interface and UDS diagnostics, and can be customized to vehicle requirements with online software upgrade support.

DC input voltage 220-460V; DC output 9-16V, rated output voltage 14V, rated output power 2.5kW, maximum output current 180A, efficiency 92%; features input/output electrical isolation; weight 3.5kg, volume 330*235*85mm; compliant with automotive-grade EMC requirements.

• High-voltage to low-voltage power supply for new energy vehicles
• Power supply for on-board 12V/14V low-voltage electrical systems
• Vehicle low-voltage load power conversion

The VMAX standalone DC-DC converter (boost DCDC) adopts high-frequency switching control and SiC MOSFET technology, enabling high-voltage electric vehicles to be compatible with low-voltage charging stations for fast charging, with bidirectional functionality (boost mode 80kW, buck mode 50kW). The product features compact size, high power density, conversion efficiency above 98.5%, complete protection mechanisms and supports customized software upgrade.

Boost mode: DC input 400-920V, output 500-920V, rated 600V, maximum output power 80kW, efficiency >98.5%; buck mode: input 500-920V, output 300-750V, efficiency >95%; adopts SiC MOSFET; liquid-cooled, coolant temperature -40~85℃, ambient temperature -40~85℃, weight 18kg, volume 450*231*104.5mm, protection rating IP6K9K+IP67.

• High-voltage platform EVs compatible with low-voltage fast charging
• Vehicle high-voltage to high-voltage bidirectional energy conversion
• 800V high-voltage platform models boost charging

The VMAX motor control unit (MCU) is the core component of the electric drive system in electric vehicles, covering single-motor, dual-motor and high-voltage motor controllers, and integrating with OBC, DCDC, VCU and BMS in multi-in-one configurations. Based on the AUTOSAR software platform and functional safety design, it supports Ethernet transmission, OTA intelligent upgrade and network security protection, bringing benefits to vehicle integration and cost control.

Product series includes single-motor, dual-motor and high-voltage motor controllers; can integrate with OBC/DCDC/VCU/BMS in multi-in-one form sharing housing, cooling system and power devices; supports AUTOSAR platform, functional safety design, Ethernet communication and OTA upgrade; the new-generation platform meets ASIL D functional safety requirements, with drive efficiency ≥92% when using SiC power modules.

• Motor drive control for electric passenger vehicles
• Drive for dual-motor all-wheel-drive models
• Electric drive system integration for high-voltage platforms

The VMAX 3-in-1 electric drive assembly highly integrates the motor, motor controller and reducer, reducing product weight by 15% and volume by 20%. The modular platform can be extended to match different vehicle models, shortening the development cycle and saving cost. Variable-frequency and multi-vector decoupling control algorithms improve motor dynamic response and NVH characteristics, while comprehensive fault diagnosis and safety monitoring ensure vehicle high-voltage, torque and high-temperature safety.

Models EPT1-35/ERT1-50/EPT1-70; voltage range 220-430V; peak power 35/50/70kW, rated power 18/24/27kW; peak torque 125/150/180Nm, rated torque 60/70/85Nm; maximum speed 9000/9000/11000rpm; reduction ratio 7.87/7.87/8.142; protection rating IP67; weight 47.3/50.6/53.8kg; volume 412/432*398*324mm; design life 10 years / 240,000 km.

• Mini / small / compact electric passenger vehicles
• Vehicle electric drive system integration
• Lightweight and low-cost vehicle model platforms

The VMAX multi-in-one electric drive assembly further integrates the on-board charger, DCDC and power distribution unit (PDU) on the basis of the electric drive, featuring high safety level, high power density, high integration and lightweight design. The new-generation microprocessor platform meets ASIL D functional safety, the SiC power modules deliver drive efficiency ≥92%, supporting 11kW/22kW AC charging and 2.5kW DCDC, with optional integration of VCU and BMS.

Motor controller: input 210-500V, rated 355V, maximum output current 500A, peak power >150kW, maximum efficiency ≥98.5%, functional safety ASIL C; OBC: bidirectional, AC input 85-265V, maximum output 6.6kW, efficiency >94.3%; DCDC: input 210-490V, output 13.8V, rated 2.5kW, efficiency >94%; PDU integrates air-conditioning compressor and PTC FUSE (40A/500V); optional integration of VCU and BMS.

• Vehicle models with highly integrated electric drive and power systems
• Lightweight and cost-optimized vehicle platforms
• New energy vehicles supporting V2L bidirectional charging

The VMAX wireless electric vehicle charging system (WEVC) delivers efficient and reliable wireless power transfer, equipped with foreign object detection (FOD) and live object protection (LOP) functions to ensure safe use. The vehicle side and the charging post communicate via WIFI with precise positioning, automatically starting charging after sensing the position, representing the optimal solution for autonomous-driving automatic charging and supporting V2G bidirectional energy flow.

WLC charging mode: AC input 176-265V@1φ/305-458V@3φ, DC output 220-490V, rated 6.0kW@1φ/9.9kW@3φ, average efficiency 91%; offset tolerance X=±100mm/Y=±120mm/Z=140-210mm; vehicle side liquid-cooled IP67 weight 11.8kg, ground side natural-cooled IP67 weight 51.1kg, power unit air-cooled IP55 weight 28.2kg; compliant with ISO15118/DIN70121/GB/T27930.

• Autonomous driving automatic charging scenarios
• Wireless energy replenishment for electric passenger vehicles
• V2G vehicle-to-grid interactive applications

The VMAX EV communication controller (EVCC) provides automakers with a solution to convert the ISO15118 or DIN70121 protocol into the Chinese national standard fast-charging GB/T27930 protocol, while also supporting European-standard and national-standard AC slow-charging signal processing, allowing national-standard vehicles to be quickly introduced to the EU market with simple matching and installation. It features a dual-CAN design and online upgrade capability.

Supports ISO15118, DIN70121, GB/T27930 standards; can simulate CP/CC/CC2 output; standard CAN interface for BMS communication; supports ISO14229/ISO15765 UDS diagnostics; dual-CAN design, OBD-port online upgrade; operating voltage 9-16Vdc, operating temperature -40~85℃, quiescent current <250uA, weight 350±18g, volume 152.3*152*44.3mm, protection rating IP67.

• Charging protocol conversion for EU-export vehicle models
• National-standard vehicles compatible with European-standard fast charging
• Vehicle charging communication control

The VMAX EV PTC controller is applied to air-conditioning systems and high-voltage battery heating systems, featuring compact size, flexible layout and customizable design. Using automotive-grade components, PWM control effectively reduces vehicle energy consumption, and it features bus communication, online flashing, sleep/wake-up, fault diagnosis and other functions, reaching EMC Class 3 level.

Low-voltage supply 9-16V, high-voltage supply 230-450V, operating power 0-4.5kW, operating ambient temperature -40~105℃; PWM control; functional safety ASIL A(B); communication CAN or LIN; wake-up LAN/hardwire (KL15 or ACC); features over-voltage, over-current, over-temperature and other fault protection; supports UDS and custom flashing; protection rating IP67; EMC Class 3.

• Heating for electric vehicle air-conditioning systems
• High-voltage battery heating systems
• Vehicle thermal management control

The VMAX 40kW liquid-cooled charging pile module delivers 40kW output power with a voltage range of 250-1000VDC, adopting full digital signal processing (DSP) control and supporting online upgrade. It uses four power MOSFETs and supports V2G functionality, with a capacitor-free (no electrolytic capacitor) design and a three-dimensional water-channel layout for optimized heat dissipation, featuring high safety, high stability and long service life.

AC input 380Vac±25%/45-65Hz, maximum input current per phase 63A, power factor ≥0.98; DC output 250-1000V, rated output power 40kW, maximum output current 133A, average efficiency 95%; liquid-cooled, coolant temperature -40~70℃, ambient temperature -40~85℃, weight 30kg, volume 445*408*122mm, protection rating IP65; supports V2G, capacitor-free design.

• DC charging pile / charging stack power modules
• Public fast-charging infrastructure
• V2G bidirectional charging stations