Shift by wire

A commercial push-button-based electronic shift selector made by Allison Transmission

Shift by wire is the system by which the transmission modes are engaged/changed in an automobile through electronic controls without any mechanical linkage between the gear shifting lever and the transmission. The transmission shifting was traditionally accomplished by mechanical links to put the vehicle in Park, Reverse, Neutral and Drive positions through a lever mounted on the steering column or a gear shifter near the center console.

This eliminates routing space required for housing the mechanical linkages between the shifter and the transmission and provides effortless shifting through the press of a button or through knobs. Elimination of this linkage removes any shift effort from the driver’s gear selection.

Production vehicles using shift by wire

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  • Audi
    • A2
    • A4L
    • A5
    • A6
    • A7
    • A8[1]
    • Q5
    • Q7
  • BMW[2]
    • 1 Series
    • 2 Series
    • 3 Series
    • 4 Series
    • 5 Series
    • 6 Series
    • 7 Series
    • i3
    • i8
    • X1
    • X2
    • X3
    • X4
    • X5
    • X6
  • Citroën
    • C4 Picasso I and C4 Picasso II (B78)[3]
  • Genesis
    • G80 (2018)
    • G90
  • Mercedes[4]
    • A-Class
    • B-Class
    • C-Class
    • CLA-Class
    • S-Class Sedan
    • S-Class Coupe
    • E-Class Sedan
    • E-Class Coupe
    • CL-Class coupe
    • GL-Class
    • GLA-Class
    • GLC-Class
    • GLE-Class
    • GLS-Class
    • G-Class
    • GLK-Class
    • M-Class
    • R-Class
  • Nissan Leaf[5]
  • Hyundai Equus[6]
  • Chrysler 300 [7]
  • Dodge Charger [7]
  • Renault Espace V (JFC) [8]
  • Rolls Royce
    • Phantom
    • Ghost
    • Wraith
  • Kia
    • K 900
    • Stinger
  • Volkswagen Phaeton
  • Toyota
    • Prius
    • Highlander Hybrid
  • Lincoln
    • MKZ
  • Honda
    • Accord 2.0t

There have been safety issues identified with production vehicles implementing the shift by wire systems which have led to recalls.[9] The major hazards associated with this type of systems are vehicle not achieving park state and vehicle moving in the wrong direction (Drive vs Reverse)

See also

References

  1. ↑ "Upgrade | Audi USA". audiusanews.com. Retrieved 2016-07-12.
  2. ↑ BMW AG (2010-05-23). "BMW Technology Guide : Six-speed automatic transmission". bmw.com. Retrieved 2016-08-26.
  3. ↑ "Automobil + Motoren | Shift-by-wire-Aktuator für Getriebe im Citroën C4 Picasso | springerprofessional.de". springerprofessional.de. Retrieved 2016-07-12.
  4. ↑ "A Look At Mercedes-Benz Seven-Speed Automatic Transmissions | eMercedesBenz". emercedesbenz.com. Retrieved 2016-07-12.
  5. ↑ "Nissan LEAF | NISSAN | TECHNOLOGICAL DEVELOPMENT ACTIVITIES". nissan-global.com. Retrieved 2016-07-12.
  6. ↑ "2014 Hyundai Equus Changes Revealed Ahead of New York Debut | J.D. Power Cars". autos.jdpower.com. Retrieved 2016-07-12.
  7. 1 2 http://media.chrysler.com/newsrelease.do;jsessionid=665FD2AE01C870A6FB1C51370BB1E083?&id=11378&mid=
  8. ↑ "Europe - Next gen Renault Espace begins testing". indianautosblog.com. Retrieved 2016-07-12.
  9. ↑ "Keeping You Safe | Safercar | National Highway Traffic Safety Administration (NHTSA)". www-odi.nhtsa.dot.gov. Retrieved 2016-07-12.
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