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    • 4. 发明授权
    • Inverter system of automotive motor
    • 汽车电机逆变系统
    • US07012401B2
    • 2006-03-14
    • US10825295
    • 2004-04-16
    • Yasuyuki OhkouchiKenji Funahashi
    • Yasuyuki OhkouchiKenji Funahashi
    • H02P5/34
    • B60L11/1803B60L1/003B60L11/1811B60L11/1868Y02T10/7005Y02T10/7066Y02T10/7072Y02T90/127Y02T90/14Y02T90/16
    • An inverter includes an upper ECU, a communication microcomputer receiving an instruction from the upper ECU, a motor control microcomputer receiving an instruction from the communication microcomputer, a gate driving circuit controlled by the motor control microcomputer, and a switching element driven by the gate driving circuit for converting a direct current of a high-voltage battery into an alternating current to drive a motor. The communications between the upper ECU and the communication microcomputer is performed according to a CAN protocol. The communications between the communication microcomputer and the motor control microcomputer is performed according to a low-speed serial communication protocol. An insulation boundary is defined between the communication microcomputer and the motor control microcomputer to isolate a low-voltage side electric component receiving electric power of the low-voltage battery from a high-voltage side electric component receiving electric power of the high-voltage battery. And, a photo coupler is disposed on the insulation boundary to assure insulation and transmit signals.
    • 逆变器包括上部ECU,接收来自上部ECU的指令的通信微型计算机,接收来自通信微型计算机的指令的电动机控制微型计算机,由电动机控制微型计算机控制的门驱动电路以及由门驱动驱动的开关元件 电路,用于将高压电池的直流电转换为交流电流以驱动电动机。 根据CAN协议执行上部ECU和通信微型计算机之间的通信。 根据低速串行通信协议进行通信微型计算机与电动机控制微型计算机之间的通信。 在通信微型计算机和电机控制微机之间限定绝缘边界,以将低压电池的低压侧电气部件接收电力与高电压电池的高压侧电气部件接收电力隔离。 并且,光耦合器设置在绝缘边界上以确保绝缘和发射信号。