Drivetrain
Accelerator Map and Torque-Request Map
Accelerator and torque-request maps turn pedal input into controlled axle or motor torque commands.
EV Dictionary: Drivetrain
Browse electric vehicle terms and definitions related to Drivetrain. 18 terms
Drivetrain
Air Suspension
A suspension system that supports the vehicle body with pressurized air springs.
Drivetrain
Axial-Flux Motor
An axial-flux motor routes magnetic flux along the shaft axis, creating a short, disc-shaped package.
Drivetrain
Back Electromotive Force (Back-EMF)
Back-EMF is the voltage a spinning motor generates in opposition to the voltage driving it.
Drivetrain
Battery-Electric Vehicle (BEV)
A vehicle powered only by electricity stored in a rechargeable traction battery.
Drivetrain
Field Weakening
Field weakening limits effective motor flux at high speed so back-EMF stays within inverter voltage.
Drivetrain
Field-Oriented Control (FOC)
FOC separates motor-current components so controllers can regulate torque and magnetic flux precisely.
Drivetrain
Frunk
A front storage compartment made possible by a vehicle's component packaging.
Drivetrain
Induction Motor (ASM)
An induction motor creates rotor current through induction and operates with controlled slip.
Drivetrain
Inverter
An EV traction inverter converts battery DC into controlled motor current and manages regenerative power flow.
Drivetrain
One-Pedal Driving
A drive mode that produces strong deceleration when the accelerator is released.
Drivetrain
Permanent-Magnet Synchronous Motor (PMSM)
A PMSM uses rotor magnets that turn in step with the stator field to produce EV traction.
Drivetrain
Plug-in Hybrid Electric Vehicle (PHEV)
A vehicle combining plug-in electric driving with an internal-combustion engine.
Drivetrain
Pulse-Width Modulation (PWM)
PWM controls an inverter's average output voltage by changing semiconductor switch-on times.
Drivetrain
Regenerative Braking
Braking that converts part of a vehicle's kinetic energy back into electricity.
Drivetrain
Silicon-Carbide Inverter (SiC)
A SiC inverter uses silicon-carbide switches to reduce selected traction-drive losses and packaging demands.
Drivetrain
Torque Vectoring
Active control of wheel or axle torque to influence traction and handling.
Drivetrain
Wound-Rotor Synchronous Motor (WRSM/EESM)
A WRSM or EESM uses electrically excited rotor windings instead of permanent magnets in an EV traction motor.