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A platform for research: civil engineering, architecture and urbanism
Motor current ripple acquisition circuit and vehicle
The invention discloses a motor current ripple acquisition circuit and a vehicle. The motor current ripple acquisition circuit comprises a controller, a relay, a vehicle window motor, a sampling resistor and a ripple processing unit. The controller is used for controlling the relay to achieve forward rotation or reverse rotation of the car window motor. When the car window motor rotates, the ripple wave processing unit collects voltage signals at the two ends of the sampling resistor and carries out bias amplification, filtering and comparison processing on the voltage signals to obtain ripple wave signals, and then the controller detects the change of the cycle of the ripple wave signals, so that the car window anti-pinch function can be achieved. According to the invention, vehicle window position detection can be realized without an external sensor, and a vehicle window anti-pinch function can be realized, so that the hardware cost is effectively reduced.
本发明公开了一种电机电流纹波采集电路和车辆，电机电流纹波采集电路包括控制器、继电器、车窗电机、采样电阻和纹波处理单元。其中，控制器用于控制继电器实现车窗电机正转或者反转；纹波处理单元在车窗电机转动时，采集采样电阻两端的电压信号，并对其进行偏置放大、滤波和比较处理后得到纹波信号，控制器再通过检测纹波信号周期的变化，从而可实现车窗防夹功能。本发明无需外部传感器即可实现车窗位置检测，并可实现车窗防夹功能，进而有效降低硬件成本。
Motor current ripple acquisition circuit and vehicle
The invention discloses a motor current ripple acquisition circuit and a vehicle. The motor current ripple acquisition circuit comprises a controller, a relay, a vehicle window motor, a sampling resistor and a ripple processing unit. The controller is used for controlling the relay to achieve forward rotation or reverse rotation of the car window motor. When the car window motor rotates, the ripple wave processing unit collects voltage signals at the two ends of the sampling resistor and carries out bias amplification, filtering and comparison processing on the voltage signals to obtain ripple wave signals, and then the controller detects the change of the cycle of the ripple wave signals, so that the car window anti-pinch function can be achieved. According to the invention, vehicle window position detection can be realized without an external sensor, and a vehicle window anti-pinch function can be realized, so that the hardware cost is effectively reduced.
本发明公开了一种电机电流纹波采集电路和车辆，电机电流纹波采集电路包括控制器、继电器、车窗电机、采样电阻和纹波处理单元。其中，控制器用于控制继电器实现车窗电机正转或者反转；纹波处理单元在车窗电机转动时，采集采样电阻两端的电压信号，并对其进行偏置放大、滤波和比较处理后得到纹波信号，控制器再通过检测纹波信号周期的变化，从而可实现车窗防夹功能。本发明无需外部传感器即可实现车窗位置检测，并可实现车窗防夹功能，进而有效降低硬件成本。
Motor current ripple acquisition circuit and vehicle
一种电机电流纹波采集电路和车辆
SHEN YANG (author) / WANG QISHUN (author) / ZENG KUN (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
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Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
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