Glossary of Electric Vehicle (EV) Terms Starting with ‘D’

DC Charger – A charger providing direct current to rapidly charge EV batteries.
DC Motor – A motor powered by direct current, used in some EVs.
Dead Weight – Unloaded vehicle weight without passengers or cargo.
Deceleration Sensor – Sensor detecting vehicle slowing for safety systems.
Deep Cycle Battery – Battery designed for repeated deep discharges.
Demand Response Charging – EV charging system responding to grid load changes.
Demagnetization – Loss of magnetism in electric motor components.
Design Validation (DV) – Testing phase verifying design against requirements.
Destination Charging – Charging stations located at travel destinations.
Digital Cockpit – Electronic dashboard providing vehicle information.
Direct Drive Motor – Motor directly connected to the vehicle’s drivetrain.
Direct Current (DC) – Unidirectional electrical current used in EVs.
Discharge Cycle – One complete battery discharge and recharge process.
Displacement Sensor – Device measuring movement in vehicle components.
Distance to Empty (DTE) – Estimated remaining distance an EV can travel.
Distributed Energy Storage – Storing energy across multiple batteries or systems.
Distribution Box – Electrical component distributing power in EVs.
DLC Coating – Diamond-like carbon coating reducing wear in EV parts.
Docking Station – Location for charging and servicing EVs.
Drag Coefficient (Cd) – Measure of vehicle aerodynamic resistance.
Drive Cycle – Standardized testing pattern for evaluating EV performance.
Drive Inverter – Converts DC to AC for EV motors.
Drive Mode Selector – System allowing switching between EV drive modes.
Drive Shaft – Component transmitting power from the motor to the wheels.
Drivetrain – Entire system delivering power from the motor to the wheels.
Drop-in Battery Replacement – Direct battery upgrade without modifications.
Dual Motor System – EV configuration using two electric motors.
Dynamic Braking – System converting kinetic energy into electrical energy.
Dynamic Load – Load varying due to movement or force changes.
Dynamic Range Estimation – Real-time prediction of EV range.
Dynamic Torque Vectoring – System distributing torque for improved handling.
Dust Shield – Protective cover preventing debris from entering EV components.
Duty Cycle – Duration and intensity of vehicle operation under load.
Dynamo – Device generating electricity from mechanical energy.
Diagnostics Port – Interface for vehicle system diagnosis and troubleshooting.
Differential – Gear system allowing wheels to rotate at different speeds.
Direct Injection – Fuel delivery system (not used in BEVs).
Discharge Rate – Speed at which a battery releases stored energy.
Display Cluster – Central screen showing vehicle status and navigation.
Docking Mechanism – System securing EVs for charging or storage.
Domain Controller – Processor managing multiple vehicle systems.
Donut Spare – Temporary spare tire (less common in EVs).
Drag Reduction System (DRS) – System reducing aerodynamic drag.
Drivetrain Efficiency – Ratio of power delivered vs. consumed.
Driveline Disconnect – Feature disengaging parts of the drivetrain to save energy.
Driving Range – Maximum distance an EV can travel on a full charge.
Dual Charging Ports – EV configuration with multiple charging inputs.
Durability Testing – Vehicle testing ensuring long-term reliability.
Dynamic Chassis Control – System adjusting suspension and handling.
Dynamic Cruise Control – Cruise control adapting to traffic conditions.
Dynamic Steering System – Variable steering adjustment for precision driving.
Digital Twin – Virtual model simulating EV performance and diagnostics.
Direct-Current Fast Charging (DCFC) – Rapid EV charging method.
Direct Injection Turbo (DIT) – Turbocharging system (for ICE vehicles).
Driver Assistance System – Technology aiding drivers with various tasks.
Driver Monitoring System – System detecting driver alertness and behavior.
Drive-by-Wire – Electronic vehicle control system replacing mechanical links.
Dry Cell Battery – Maintenance-free battery type used in EVs.
Dynamic Brake Control (DBC) – Enhances brake force distribution.
Dynamic Vehicle Control (DVC) – Manages vehicle stability and handling.
Dynamic Load Balancing – Adjusting power delivery across components.
Drift Compensation – System maintaining straight vehicle movement.
Dashboard Display – Vehicle interface showing key information.
Data Logger – Device recording vehicle performance data.
Decibel Rating – Noise level measure for vehicle cabin quietness.
Dedicated EV Platform – Vehicle platform designed exclusively for EVs.
Deformation Zone – Car section designed to absorb impact energy.
Delivery Van EV – Electric van used for goods delivery.
Depreciation Rate – Vehicle value decline over time.
Design Freeze – Final design stage before manufacturing.
Diagnostic Scan Tool – Device used to check vehicle error codes.
Differential Lock – Locks wheels to rotate at the same speed for traction.
Digital Key – Smartphone-based vehicle access system.
Direct Torque Control (DTC) – Precision motor torque management.
Display Screen – Interface providing vehicle and entertainment data.
Distribution Transformer – Converts electricity for EV charging stations.
Downforce – Aerodynamic force pressing a vehicle downward.
Driving Assistance Package – Bundle of safety and comfort features.
Drive Mode Indicator – Displays active vehicle drive mode.
Dry Clutch System – Clutch without lubrication (non-EV).
Dual-zone Climate Control – Independent temperature settings for driver and passenger.
Dust-proof Seals – Protects EV components from dust and debris.
Dynamic Lighting – Adjusting headlights for visibility and aesthetics.
Dynamic Radar Cruise Control – Advanced cruise control using radar.
Dynamic Suspension System – Adjustable suspension improving ride quality.
Dynamic Tensioner – Adjusts belt tension in EV accessories.
Drive Axle – Transfers motor power to the wheels.
Dry Cell Technology – Battery type with sealed electrolyte.
Digital Speedometer – Electronic vehicle speed display.
Direct Injection Pump – Fuel delivery system (not for EVs).
Data Transmission Module – Manages vehicle data exchange.
Downhill Assist Control – Helps maintain speed on slopes.
Durable EV Frame – Sturdy vehicle frame ensuring long life.
Dynamic Performance Mode – Boosts EV performance for spirited driving.
Driveline Torque Control – Adjusts torque delivery to wheels.
Driver Fatigue Monitor – Alerts driver during long trips.
Data Communication System – Links vehicle systems for data sharing.
Dual-Stage Airbags – Airbags deploying at different intensities.
Digital Interface Module – Manages vehicle control interfaces.
Dynamic Power Distribution – Balances power delivery in EV systems.