丰田皇冠培训-CROWN自动变速器A760E分解.ppt

* * * * * * * * EPS ECU提供12V电压给励磁线圈 EPS ECU applies 12V to exciting coil * * * 通过比较信号A和信号B的波形检测相对角度 Relative angle can be detected by comparing the signal A and signal B waveforms * * * 驾驶者转动方向盘时，转子部分的分解器1和2会产生一个相对角度差，基于这些信号，EPS ECU计算所需的辅助电流 When the driver turns the steering wheel, a relative angle difference is created between the resolver 1 and 2 of rotor portion, and based on these signals , the EPS ECU calculates the assist current from relative angle difference * * 电机为高功率输出，无刷型电机，由27-34V电压驱动。 EPS ECU中的增压变压器将蓄电池的12V电压转为28V并提供给电机。 The motor is high power output, brushless type motor that is driven by a voltage of 27-34V. Boost converter in EPS ECU converts the voltage of the battery from 12V to 28V and supplies this power source to the motor. * * * 注： NCF上所列为5 个Director * 检测方法和扭矩传感器相同 通过比较信号A和信号B波形检测相对角度变化 Detection method of position is the same as the torque sensor. Relative angle can be detected by comparing the signal A and signal B waveforms * EPS ECU接收不同传感器信号，以此判断当前车辆状况，并决定施加给电动机的助力电流大小 The EPS ECU receive signals from various sensors, judges the current vehicle condition, and determines the assist current to be applied to the motor accordingly * * 故障码存储在内存中 [扭矩传感器故障] C1511:扭矩传感器(TRQ1) 信号错误或终止 C1512:扭矩传感器(TRQ2)信号错误或终止 C1513: 扭矩传感器TRQ1 和TRQ2之间间隙超过规定 [电动机故障] C1521: 电动机过电流故障 C1522: 电动机电流传感器故障 C1523: ? C1524: 电动机端子间电压错误 DTCs store in memory [Torque Sensor Malfunction] C1511: Torque sensor (TRQ1) signal error or stop C1512: Torque sensor (TRQ2) signal error or stop C1513: Deviation between torque sensor TRQ1 and TRQ2 is out of specification [Motor Malfunction] C1521: Motor overcurrent malfunction C1522: Motor current sensor malfunction C1523: ? C1524: Voltage error between motor terminals * U0104, U0105, u0121: P/S 警告灯不点亮 [EPS故障] C1531: ECU 内部故障 (CPU 故障) C1532: ECU 内部故障 (外围电路故障) C1533: ECU 内部故障 (底层温度传感器故障) C1534: ECU 内部故障 (EEPROM 错误) U0104, U0105, u0121: P/S warning light is not turned ON [EPS malfunction] C1531: ECU internal malfunction (CPU malfunction