Shift-by-wire
Shift-by-wire is an
Dispensing with gearshift mechanical linkages has several advantages: it reduces complexity and simplifies assembly; reduces the force required to shift gears and allows it to be customized with haptic technology; allows for more interior design freedom in the placement of the gearshift mechanism; allows for automation of the engagement of the parking brake and other functions; reduces cabin noise by eliminating the acoustic linkage between the transmission and the gear shift; and by reducing floor openings it improves the crash behavior of the vehicle.[1]
With a mechanical connection, the gearshift selector always matches the engaged transmission gear. With shift-by-wire, safety mechanisms need to be put in place. The system needs to block incorrect input and "guide" the gearshift back to a position that matches the state of the transmission in case of error. Another solution is to separate the gearshift selector from the gear indicator, meaning the driver has to visually monitor which gear is actually engaged, for instance on a display. Safety considerations require redundancy in the gearshift and transmission sensors and in the vehicle communication network.[1]
Park by wire
A park by wire system engages the
See also
- Drive by wire
- Unsafe at Any Speed § Disaster deferred
References
- ^ ISBN 978-3-642-16213-8
- ^ "Archived copy" (PDF). ricardo.com. Archived from the original (PDF) on 1 September 2013. Retrieved 22 May 2022.
{{cite web}}: CS1 maint: archived copy as title (link)
