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標題: Questionz about 變速器 .. [打印本頁]

作者: vrally582 時間: 2006-6-15 11:41
標題: Questionz about 變速器 ..
Does it to change another type of controller too if I change from Mechanical Speed Controls to MSC?

作者: AMAT 時間: 2006-6-15 12:47

原帖由 vrally582 於 2006-6-15 11:41 發表
Does it to change another type of controller too if I change from Mechanical Speed Controls to MSC?

MSC? ESC呀?

作者: vrally582 時間: 2006-6-15 14:42
ESC=電子變速
MSC=机械变速

作者: gibson 時間: 2006-6-15 15:04
I don't think your need to change the controller (transmitter), you can use the same transmitter, just take out the mechanical speed control and the servo, plug in the (I think you mean the ESC) electronic speed control into the receiver. Set neutral, that is.

作者: vrally582 時間: 2006-6-16 00:13

原帖由 gibson 於 2006-6-15 15:04 發表
I don't think your need to change the controller (transmitter), you can use the same transmitter, just take out the mechanical speed control and the servo, plug in the (I think you mean the ESC) el ...

u mean it dont need the servo after chg ESC? or replace another new servo?

作者: gibson 時間: 2006-6-16 01:46
標題: 回復 #5 vrally582 的帖子
If you using the ESC, no need a servo, the ESC is a device connected between the motor and the receiver, it receive the signal from the receiver to control the power to the motor. So you no need to have a servo.

作者: vrally582 時間: 2006-6-16 11:07

原帖由 gibson 於 2006-6-16 01:46 發表
If you using the ESC, no need a servo, the ESC is a device connected between the motor and the receiver, it receive the signal from the receiver to control the power to the motor. So you no need t ...

So, how about transmitter? Does the transmitter release only a throttle signal or breaking signal
receiver? I heard that " speed control unit"can make the car run with half speed. I understand how doesESC and MSC works. But can transmitter release a "half throttle" signal to receiver? Also the"half
throttle" signal is generated by transmitter and then pass this signal to Speed control unit to control the car run at half speed(it is like anlog) ? OR only the"throttle" and "breaking" signal (like digital) is generated by transmitter. Speed control unit (ESC/MSC) is a independent unit that control the speed ?

作者: Rcrounder 時間: 2006-6-16 13:15
What is your transmitter brand and model? Most transmitters can send analog signal, i.e., continuous throttle control and steering control.

作者: ice1234 時間: 2006-6-16 13:25

原帖由 vrally582 於 2006-6-16 11:07 AM 發表

So, how about transmitter? Does the transmitter release only a throttle signal or breaking signal
receiver? I heard that " speed control unit"can make the car run with half speed. I ...

You seem not really understand how ESC and MSC works

Transmitter send analog signal in PPM or digital signal in PCM to receiver that both are encoded,
receiver do decoding work and separate the signal pulse into individual channel(change from 1ms to 2ms) .
ESC receive the decoded signal from receiver and according to the variation of the pulse signal which from 1ms to 2ms to control the speed of motor and the direction, 1.5mS is define as a neutral point so motor will stop within +- 20uS deadband...Speed controlling can be done by using PWM (change the Duty cycle ) or in other word changing the proportion of on/off time in fixed frequency for switching the Power MOSFET to change the average output voltage........not only half speed ,it can vary the speed of motor linear.
MSC only use a resistor to reduce the current via the motor to achieve the speed controlling.and it only have three speed and can not provide linear speed control
I hope these i have mentioned can give some idea for u...

[ 本帖最後由 ice1234 於 2006-6-16 21:09 編輯 ]

作者: vrally582 時間: 2006-6-17 01:49

原帖由 Rcrounder 於 2006-6-16 13:15 發表
What is your transmitter brand and model? Most transmitters can send analog signal, i.e., continuous throttle control and steering control.

The same kind of R/C : http://www.tamiyausa.com/product/item.php?product-id=57706

it is TL-01 with MSC. I dont know what kind of this transmitter is.

作者: vrally582 時間: 2006-6-17 02:12

原帖由 ice1234 於 2006-6-16 13:25 發表

You seem not really understand how ESC and MSC works
Transmitter send analog signal in PPM or digital signal in PCM to receiver that both are encoded,
receiver do decoding work and sepa ...

Thx ! understand more .

Does lower speed would provide higher torque on motor than faster
speed do?

p.s. nice pic

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