graph LR %% 电源输入与分配部分 subgraph "多级电源系统输入" BAT_48V["48V/60V高压电池组"] BAT_24V["24V辅助电池"] BAT_12V["12V低压电池"] BAT_48V --> BMS_MAIN["电池管理系统BMS"] BAT_24V --> BMS_AUX["辅助电源管理"] BAT_12V --> MCU_POWER["控制单元电源"] end %% 场景1：主驱动电机控制 subgraph "场景1：主驱动电机控制 (动力核心)" MAIN_DRIVE["主驱动电机 \n 48V/60V系统"] subgraph "三相逆变桥臂" Q_U["VBGED1601 \n 下桥臂U"] Q_V["VBGED1601 \n 下桥臂V"] Q_W["VBGED1601 \n 下桥臂W"] end BMS_MAIN --> HV_BUS["高压直流母线"] HV_BUS --> INV_IN["逆变器输入"] INV_IN --> Q_U INV_IN --> Q_V INV_IN --> Q_W Q_U --> MOTOR_U["电机U相"] Q_V --> MOTOR_V["电机V相"] Q_W --> MOTOR_W["电机W相"] MOTOR_U --> MAIN_DRIVE MOTOR_V --> MAIN_DRIVE MOTOR_W --> MAIN_DRIVE MCU_DRIVE["电机控制MCU"] --> GATE_DRIVER["隔离栅极驱动器"] GATE_DRIVER --> Q_U GATE_DRIVER --> Q_V GATE_DRIVER --> Q_W end %% 场景2：辅助执行机构 subgraph "场景2：辅助执行机构 (功能支撑)" subgraph "DC-DC转换模块" DC_DC_CONV["升降压转换器"] VBA3316G_1["VBA3316G \n 半桥N+N"] end subgraph "H桥电机驱动" VBA3316G_2["VBA3316G \n 半桥N+N"] VBA3316G_3["VBA3316G \n 半桥N+N"] STEERING_MOTOR["转向助力电机"] SEAT_MOTOR["座椅调节电机"] end BMS_AUX --> AUX_BUS["24V辅助总线"] AUX_BUS --> DC_DC_CONV DC_DC_CONV --> VBA3316G_1 VBA3316G_1 --> SMART_CABIN["智能座舱设备"] AUX_BUS --> VBA3316G_2 AUX_BUS --> VBA3316G_3 VBA3316G_2 --> STEERING_MOTOR VBA3316G_3 --> SEAT_MOTOR MCU_AUX["辅助系统MCU"] --> PRE_DRIVER["预驱芯片"] PRE_DRIVER --> VBA3316G_1 PRE_DRIVER --> VBA3316G_2 PRE_DRIVER --> VBA3316G_3 end %% 场景3：高边开关与安全隔离 subgraph "场景3：高边开关控制 (安全关键)" subgraph "电池主回路开关" VBA5104N_1["VBA5104N \n N+P组合"] BAT_DISCHARGE["电池放电回路"] BAT_CHARGE["电池充电回路"] end subgraph "安全负载控制" VBA5104N_2["VBA5104N \n N+P组合"] VBA5104N_3["VBA5104N \n N+P组合"] EM_BRAKE["电磁刹车"] ALARM["报警器"] SAFETY_LOAD["其他安全负载"] end BAT_48V --> VBA5104N_1 VBA5104N_1 --> BAT_DISCHARGE VBA5104N_1 --> BAT_CHARGE AUX_BUS --> VBA5104N_2 AUX_BUS --> VBA5104N_3 VBA5104N_2 --> EM_BRAKE VBA5104N_3 --> ALARM VBA5104N_3 --> SAFETY_LOAD MCU_SAFETY["安全控制MCU"] --> LEVEL_SHIFTER["电平转换器"] LEVEL_SHIFTER --> VBA5104N_1 LEVEL_SHIFTER --> VBA5104N_2 LEVEL_SHIFTER --> VBA5104N_3 end %% 控制与监控系统 subgraph "中央控制与监控" MAIN_MCU["主控MCU"] subgraph "传感器集群" TEMP_SENSOR["温度传感器"] CURRENT_SENSE["电流检测"] VOLTAGE_SENSE["电压检测"] SPEED_SENSOR["速度传感器"] end subgraph "保护电路" OVERCURRENT["过流保护"] OVERTEMP["过温保护"] SHORT_CIRCUIT["短路保护"] ESD_PROTECT["ESD保护"] end TEMP_SENSOR --> MAIN_MCU CURRENT_SENSE --> MAIN_MCU VOLTAGE_SENSE --> MAIN_MCU SPEED_SENSOR --> MAIN_MCU MAIN_MCU --> OVERCURRENT MAIN_MCU --> OVERTEMP MAIN_MCU --> SHORT_CIRCUIT MAIN_MCU --> ESD_PROTECT OVERCURRENT --> FAULT_LATCH["故障锁存"] OVERTEMP --> FAULT_LATCH SHORT_CIRCUIT --> FAULT_LATCH FAULT_LATCH --> SHUTDOWN["系统关断信号"] end %% 散热系统 subgraph "分级热管理架构" COOLING_LEVEL1["一级: 专用散热器"] COOLING_LEVEL2["二级: 强制风冷"] COOLING_LEVEL3["三级: PCB敷铜"] COOLING_LEVEL1 --> Q_U COOLING_LEVEL1 --> Q_V COOLING_LEVEL1 --> Q_W COOLING_LEVEL2 --> DC_DC_CONV COOLING_LEVEL3 --> VBA3316G_1 COOLING_LEVEL3 --> VBA3316G_2 COOLING_LEVEL3 --> VBA3316G_3 COOLING_LEVEL3 --> VBA5104N_1 COOLING_LEVEL3 --> VBA5104N_2 COOLING_LEVEL3 --> VBA5104N_3 TEMP_CONTROL["温度控制器"] --> FAN_DRIVER["风扇驱动"] TEMP_CONTROL --> PUMP_DRIVER["泵驱动"] FAN_DRIVER --> COOLING_FAN["冷却风扇"] PUMP_DRIVER --> LIQUID_PUMP["液冷泵"] end %% 通信系统 MAIN_MCU --> CAN_BUS["CAN总线"] CAN_BUS --> VEHICLE_COMM["车辆通信网络"] MAIN_MCU --> AI_MODULE["AI计算模块"] AI_MODULE --> SENSOR_FUSION["传感器融合"] AI_MODULE --> VOICE_CTRL["语音控制"] AI_MODULE --> NAV_SYS["导航系统"] %% 样式定义 style Q_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px style VBA3316G_1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px style VBA5104N_1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px style MAIN_MCU fill:#fce4ec,stroke:#e91e63,stroke-width:2px

graph LR subgraph "三相逆变桥拓扑" A[高压直流母线] --> B[直流母线电容] B --> C["VBGED1601 U相"] B --> D["VBGED1601 V相"] B --> E["VBGED1601 W相"] C --> F[U相输出] D --> G[V相输出] E --> H[W相输出] F --> I[主驱动电机] G --> I H --> I end subgraph "栅极驱动电路" J[电机控制MCU] --> K[隔离驱动IC] subgraph "驱动信号分配" K --> L[U相驱动] K --> M[V相驱动] K --> N[W相驱动] end L --> C M --> D N --> E end subgraph "保护与检测" O[电流传感器] --> P[过流检测] Q[温度传感器] --> R[过温检测] S[电压检测] --> T[过压检测] P --> U[故障信号] R --> U T --> U U --> V[保护锁存] V --> W[驱动禁用] W --> K end style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px

graph TB subgraph "升降压DC-DC转换器" A[24V辅助总线] --> B[输入滤波] B --> C["VBA3316G \n 半桥N+N"] subgraph "功率电感与电容" C --> D[功率电感] D --> E[输出电容] end E --> F[12V输出] F --> G[智能座舱设备] H[PWM控制器] --> I[预驱芯片] I --> C end subgraph "H桥转向助力驱动" J[24V辅助总线] --> K[输入保护] K --> L["VBA3316G 上桥"] K --> M["VBA3316G 下桥"] L --> N[转向电机正端] M --> O[转向电机负端] N --> P[转向助力电机] O --> P Q[转向控制MCU] --> R[半桥驱动] R --> L R --> M end subgraph "座椅调节驱动" S[24V辅助总线] --> T[输入保护] T --> U["VBA3316G 上桥"] T --> V["VBA3316G 下桥"] U --> W[座椅电机正端] V --> X[座椅电机负端] W --> Y[座椅调节电机] X --> Y Z[座椅控制MCU] --> AA[半桥驱动] AA --> U AA --> V end style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px style L fill:#e3f2fd,stroke:#2196f3,stroke-width:2px style U fill:#e3f2fd,stroke:#2196f3,stroke-width:2px

graph LR subgraph "电池主回路开关" A[48V电池正极] --> B["VBA5104N N-MOS"] A --> C["VBA5104N P-MOS"] B --> D[放电回路] C --> E[充电回路] D --> F[负载端] E --> G[充电端] H[安全控制MCU] --> I[电平转换] I --> B I --> C end subgraph "高边开关负载控制" J[24V辅助总线] --> K["VBA5104N N-MOS"] J --> L["VBA5104N P-MOS"] K --> M[电磁刹车正极] L --> N[电磁刹车负极] M --> O[电磁刹车] N --> O P[安全控制MCU] --> Q[电平转换] Q --> K Q --> L end subgraph "安全冗余控制" R[24V辅助总线] --> S["VBA5104N N-MOS"] R --> T["VBA5104N P-MOS"] S --> U[报警器正极] T --> V[报警器负极] U --> W[报警器] V --> W S --> X[其他安全负载] T --> X Y[冗余MCU] --> Z[电平转换] Z --> S Z --> T end subgraph "故障检测与隔离" AA[负载电流检测] --> AB[比较器] AC[负载电压检测] --> AD[ADC] AB --> AE[故障判断] AD --> AE AE --> AF[故障锁存] AF --> AG[隔离控制] AG --> I AG --> Q AG --> Z end style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px style S fill:#fff3e0,stroke:#ff9800,stroke-width:2px