1. Select shift manual (SSM) and Auto shift manual (ASM) modes

  • SSM mode allows a driver to control gear changes as per his personal preference as in a conventional manual transmission, whereas ASM mode provides automatic gear shifting as in an automatic transmission.
  • Both SSM and ASM use a combination of Auto clutch and Shift by wire electronic control Technology.
  • Either of these makes use of an Electro Hydraulic or Electro Mechanical actuation system controlled by a separate transmission control module. 
  • The request of the driver for a particular gear shift is transmitted by a sensor to the controller which sends a command to the actuator to open or close the clutch and disengage or engage the gear with very fast response times.



2. Adaptive transmission control (ATC)

  • Such a control system recognizes individual style of driving example relaxed or aggressive and accordingly adapts the shift parameters of transmission. 
  • This may be of two types the adaptive shift scheduling and adaptive shift quality control. 
  • The former uses information to determine driving style and accordingly decides when to shift down or up. 
  • This can also recognise uphill or down hill gradients and hard cornering and avoids shifts affecting vehicle stability. 
  • The later type, however, uses information about the vehicle or environment and is able to adjust shift smoothness to driving style.