Hello!
I am working on a project that I want to simulate into a circuit.
This is the real thing:
To help you understand what is all about, this is an exhaust valve actuator from my Kawasaki Z750. The motor opens and closes a valve. This is the mechanical part. The electronic part is that this motor is connected through a rheostat to an input of the moto ECU. There is a feedback to the ECU that tells if the valve is working or not. If it is not working or stuck an error light lights up!
And this is the schematic:
Explain:
At t=0 sec, there is no voltage to Motor_1 and Motor_2 we have 3.6 Volts to feedback wire...
When voltage applies to Motor_1 or Motor_2 then the motor turns the valve and the "needle" is moving up or down the resistance of 5kOhm of the rheostat.
When:
Motor_1=12 Volts DC
Motor_2=0 Volts
Feedback=3.6 Volts DC after 0.4 sec (Capacitor is charging)
And when:
Motor_1=0 Volts
Motor_2=12 Volts DC
Feedback=0 Volts DC after 0.2 sec (Capacitor is discharging)
The other wires are just +5 Volts DC and Ground
Another thing in mind is that when the feedback reaches the desired voltage, ECU cuts out Motor_1 and Motor_2.
This is the circuit I have come out with:
As you can see I don't use the +5 Volts DC wire.
But in this circuit when Motor_1 and Motor_2 wires are 0 Volts, the capacitor discharges...
My problem is that I want to keep the feedback voltage, for as many time as the two inputs are 0 Volt.
How can I make it work?
I am working on a project that I want to simulate into a circuit.
This is the real thing:
To help you understand what is all about, this is an exhaust valve actuator from my Kawasaki Z750. The motor opens and closes a valve. This is the mechanical part. The electronic part is that this motor is connected through a rheostat to an input of the moto ECU. There is a feedback to the ECU that tells if the valve is working or not. If it is not working or stuck an error light lights up!
And this is the schematic:
Explain:
At t=0 sec, there is no voltage to Motor_1 and Motor_2 we have 3.6 Volts to feedback wire...
When voltage applies to Motor_1 or Motor_2 then the motor turns the valve and the "needle" is moving up or down the resistance of 5kOhm of the rheostat.
When:
Motor_1=12 Volts DC
Motor_2=0 Volts
Feedback=3.6 Volts DC after 0.4 sec (Capacitor is charging)
And when:
Motor_1=0 Volts
Motor_2=12 Volts DC
Feedback=0 Volts DC after 0.2 sec (Capacitor is discharging)
The other wires are just +5 Volts DC and Ground
Another thing in mind is that when the feedback reaches the desired voltage, ECU cuts out Motor_1 and Motor_2.
This is the circuit I have come out with:
As you can see I don't use the +5 Volts DC wire.
But in this circuit when Motor_1 and Motor_2 wires are 0 Volts, the capacitor discharges...
My problem is that I want to keep the feedback voltage, for as many time as the two inputs are 0 Volt.
How can I make it work?
