15.01.2021, 22:49
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#59
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Пользователь
Житель форума
Регистрация: 26.06.2019
Адрес: Одесса
Марка: Zj lim 93 4.0
Сообщений: 1,021
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Цитата:
Сообщение от alekssandr
это не шаговый двигатель, он не может быть наполовину открытым, обычный клапан, даже без обратной связи, регулировка может происходить только по принципу открыто- закрыто- опять открыто и т.д.
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может, с помощью ШИМа. вроде как 512 hz.
Цитата:
1995 to 2007 Dodge, Ram and Jeep vehicles with the 40RE, 42RE, 44RE, 46RE, 47RE and 48RE automatic transmission often come in with contaminated governor pressure solenoids. This results in complaints of wrong gear starts as well as governor solenoid and sensor performance codes.
The computer uses the governor pressure solenoid to generate governor pressure relative to road speed, emulating what the hydraulic governor did in older ‘RH’ series transmissions. The computer varies the duty cycle to the PWM governor pressure solenoid to achieve the desired output pressure. Simultaneously, it monitors the feedback from the governor pressure sensor to confirm that the governor pressure is doing what it is commanded to do. When the solenoid sticks or is restricted, the computer notices that the pressure reading from the sensor does not match the desired governor pressure and sets a code which puts the unit in limp-in mode resulting in 3rd gear start and no shift.
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