How to control the speed of a DC wiper motor?
Click to expand… Standard mehod to control a DC motor is PWM. You need a puls generator with variable pulswidth. A 555 timer will do this job. The pulses are used to switch a power transistor that controls the motor. a windshield wiper motor. The problem I’m having is that the motor turns to quickly in low speed!
What’s the maximum drain current on a wiper?
Maximum drain source voltage is 100V, maximum drain current is 22A and the drain-source resistance during switch on is 0.055ohm. The ON time of the astable multivibrator controls the sweep time of the wiper.
Can a wiper motor be connected in parallel?
If your vehicle has two wiper motors, you can connect them in parallel. The total load current must not exceed 20A. Adjust preset R1 so that the wiper makes one sweep cycle. POT R2 can be used to vary sweep frequency (speed). R2 must be fitted on the dashboard where you have easy access.
What kind of mosefet is used for wiper motor?
IRF540 MOSEFET is used for driving the wiper motor. IRF540 is an n-channel MOSFET with excellent characteristics. Maximum drain source voltage is 100V, maximum drain current is 22A and the drain-source resistance during switch on is 0.055ohm. The ON time of the astable multivibrator controls the sweep time of the wiper.
Is the windshield wiper connected to the BCM?
The windshield wiper system in your car is also connected to the BCM. Your body control module also controls the power windows, air conditioning, the immobilizer system, the central electronic locking of the car, and the movement of the mirrors. Most simple, basic electronic functions that your car has run through the body control module.
What is the function of the wiper module?
The wiper module’s primary job is to send a signal to the wiper motor which powers the wiper blades. Before it can control the speed or duration of the wiper blades, it must first tell the motor to turn them on or signal them to shut off.
How does a Body Control Module ( BCM ) work?
It streamlines the manufacturing and troubleshooting aspects of electronic modules by housing the modules into one, central unit instead of each function having its own device. It also coordinates the operating functions of many non-engine related ancillary items as well as security features.
Why does my BCM fail at high speeds?
If the car becomes a bit unstable or misfires when you drive it at high speeds, the BCM might not be communicating and synchronizing different systems of the car. ● Bad acceleration. If your acceleration isn’t smooth, you could also be experiencing BCM failure.