Automobile air conditioner external control electromagnetic valve electric current control system
A technology of current control and solenoid valves, which is applied to circuits or fluid pipelines, vehicle components, transportation and packaging, etc. It can solve problems such as automobile engine interference, large fluctuations in air-conditioning temperature, and discontinuity, and achieve good reliability and economy , high safety effect
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.
[0022] Such as figure 1 As shown, the present invention external control solenoid valve current control device includes
[0023] The power module is used to provide power for the CAN receiving and sending module, the microprocessor module, the output drive and feedback current sampling module, and the feedback current processing and sampling module;
[0024] The CAN receiving and sending module is used to receive the external current control command and send it to the microprocessor, and the receiving microprocessor receives the feedback drive device temperature signal and alarm signal and sends it to the vehicle system;
[0025] The output drive and feedback current sampling module is used to receive the PWM control command sent...
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