Electronic shifting of automatic transmission (AT)
Electronic shifting is a system that uses electronics to change gears in an automatic transmission. This differs from traditional automatic transmissions, which use a hydraulic system to change gears.
Operating principle
Electronic gear shifting works as follows:
* Sensors in the transmission detect vehicle speed, gas pedal position, engine speed and other parameters.
* The electronic control unit (ECU) processes this data and determines the optimal time to change gears.
* The ECU sends signals to solenoids in the transmission, which activate and deactivate the clutches to change gear.
Advantages
Electronic gear shifting has a number of advantages compared to traditional automatic transmissions:
*Smoother Shifting: The electronic system provides smoother shifting because it precisely senses shift timing and uses solenoids to activate the clutches.
*Improved Fuel Economy: Electronic shifting can optimize shift timing for improved fuel economy.
* Better Handling: The electronic control unit can adapt to the driver’s driving style and road conditions, providing more responsive and predictable handling.
*Manual shift capability: Some electronic shift systems allow the driver to manually shift gears using the steering wheel paddles or shift lever.
*Easy Diagnostics: The electronic system provides diagnostic capabilities, allowing faults to be easily identified and corrected.
Flaws
Electronic gear shifting also has some disadvantages:
* More complex system: The electronic system is more complex than traditional hydraulic systems, which can result in higher repair and maintenance costs.
*Some drivers may prefer the feel of a traditional hydraulic system. Shifting gears electronically can be less tactile than shifting using a hydraulic system.
* Potential Reliability Issues: Electronic components may be susceptible to failures that could affect the operation of the automatic transmission.
Prevalence
Electronic gear shifting is becoming more common in modern cars. Many manufacturers now offer cars with electronic gear shifting in a variety of models.