An electronic control system where driver inputs at the steering wheel, throttle, or brake pedal are converted into digital signals. An electronic control unit processes these signals and commands electric motors or hydraulic actuators to perform the physical work, eliminating the need for physical throttle cables or steering columns.
The throttle response feels disconnected because of the drive-by-wire system smoothing out the pedal inputs.
Also heard as
- x-by-wire
Related terms
ECU
The primary computer that manages engine performance, fuel delivery and emissions.
Throttle body
A housing containing a pivoting valve that controls the amount of air entering a fuel-injected engine.
ADAS
Advanced driver-assistance systems that use sensors and cameras to improve vehicle safety.
X-by-wire
A catch-all term for vehicle control systems that use electronic signals rather than mechanical linkages.