Electric Vehicle Registration

Vehicle registration

Accurate EV routing depends on vehicle-specific characteristics such as battery capacity, energy consumption, charging behavior, and dimensions. Range predictions and charging-stop calculations are more accurate when they are based on the exact vehicle being routed.

Register your vehicles in the My TomTom portal to make these characteristics available to the routing services. You add and manage vehicle variants directly in the portal. Each registration also initializes a consumption model that is refined over time from real trip data, with no manual input required.

Sign in to the My TomTom portal and open the EV Management page to add a new vehicle. Fill in the vehicle parameters described below and submit the form to register the vehicle.

NOTE

Each registration corresponds to a single vehicle variant. If the same vehicle has multiple configurations (for example, different battery sizes or dimensions), register each configuration separately so that each variant receives its own variantId.

After you submit a vehicle, the portal displays the unique variantId for the registered vehicle variant. Use this variantId in Online Routing API requests, for Long Distance EV Routing in the Navigation SDK, and for range calculations.

Data security and privacy

Your vehicle data is treated with a high level of confidentiality and is isolated at the project level. Registered vehicles and their parameters, including the resulting variantId, are accessible only through the API key assigned to the project you used to register them. This is the same access scope that applies to the rest of your project’s data. TomTom does not share your vehicle data with any other party.

NOTE

Treat variantId values with the same confidentiality level as the vehicle metadata.

Registration parameters

The following parameters make up the vehicle registration form. Fill in each field as described below.

Vehicle parameters

Parameter	Description
	Type	Unit	Required	Default value	Valid range
Brand Name	Vehicle brand name. Commercial name, not commercial entity (for example, Fiat, not Stellantis). A brand groups several models.
Brand Name	String	-	`True`	-	[1, 40] characters
Model Name	The model name of a vehicle.
Model Name	String	-	`True`	-	[1, 50] characters
Variant Name	The variant name of a vehicle. Recommended when several vehicles share the same Brand Name and Model Name but differ in attributes such as weight or battery size, to make identification easier.
Variant Name	String	-	`False`	-	[1, 50] characters
Produced From	Production start date of the vehicle variant. A past date indicates the vehicle is, or was, in production. A future date indicates the vehicle will enter production on that date. Empty indicates the vehicle is not yet in production and the production date is unknown.
Produced From	String	-	`False`	-	Format: YYYY-MM YYYY: indicates a four-digit year MM: indicates a two-digit month in the format 01-12 Empty: not in production yet
Produced To	End of production of the vehicle variant. Empty indicates the vehicle is still in production. Applies only if “Produced From” is not empty.
Produced To	String	-	`False`	-	Format: YYYY-MM YYYY: indicates a four-digit year MM: indicates a two-digit month 01-12 Empty: still in production
Drive Train	Type of the drivetrain.
Drive Train	Enum	-	`True`	-	FWD: Front-wheel drive RWD: Rear-wheel drive AWD: All-wheel drive
Length	Overall length of the vehicle in centimeters.
Length	Float	Centimeters	`True`	-	[200, 2500]
Width	Overall width of the vehicle in centimeters.
Width	Float	Centimeters	`True`	-	[100, 300]
Height	Overall height of the vehicle in centimeters.
Height	Float	Centimeters	`True`	-	[100, 400]
Max Speed	Maximum speed of the vehicle.
Max Speed	Integer	Kilometers per hour	`True`	-	[0, 250]
Curb Weight	Vehicle weight with all standard equipment, excluding passengers, cargo, or optional equipment.
Curb Weight	Integer	Kilograms	`True`	-	[400, 18000]
Vehicle Type	Type of the vehicle.
Vehicle Type	Enum	-	`True`	-	Possible values: `CAR`
Engine Type	Type of the engine.
Engine Type	Enum	-	`True`	-	Possible values: `BATTERY_ELECTRIC`
WLTP Range	EV range measured under the WLTP standard. Providing this value can improve the quality of consumption prediction during the initial learning phase.
WLTP Range	Float	Kilometers	`False`	-	(0, )
WLTP Energy Consumption	EV energy consumption measured under the WLTP standard. Providing this value can improve the quality of consumption prediction during the initial learning phase.
WLTP Energy Consumption	Float	Watt-hours per kilometer (Wh/km)	`False`	-	(0, )
Battery Capacity Nominal	Maximum battery energy storage capacity as specified by manufacturer. Rated or standard energy the battery can hold under normal conditions, including safety buffers.
Battery Capacity Nominal	Float	Watt-hours	`True`	-	(0, 250000]
Battery Capacity Usable	Portion of battery capacity that can be used to power the vehicle. This value is typically lower than the nominal capacity. Manufacturers may limit it deliberately to protect the battery and extend its service life. Specify the value with a resolution of at least one watt-hour.
Battery Capacity Usable	Float	Watt-hours	`True`	-	[0, Battery Capacity Nominal]
Auxiliary Power	Power required by auxiliary systems (air conditioning, heating, infotainment, lighting) not used for propulsion.
Auxiliary Power	Float	Watts	`False`	1000	[0, 15000]
Charging Time Offset	Additional time required to plug in and unplug the vehicle. Added to the calculated charging time.
Charging Time Offset	Integer	Seconds	`False`	180	[0, 3600]

Battery charging curve

Provide a charging curve as a list of “State of Energy” and “Max Power” pairs. Include 2 to 20 pairs for interpolation using a piecewise-linear function. This is a global curve. Connector-specific curves are described below. If a single curve is insufficient, omit this global curve and provide individual charging curves for each connector instead.

Parameter	Description
	Type	Unit	Required	Default value	Valid range
State of Energy	Battery energy level at this point on the curve.
State of Energy	Float	Kilowatt-hours	`True`	-	[0, Battery Capacity Usable]
Max Power	Maximum power that the vehicle can accept at a given state of energy.
Max Power	Float	Kilowatts	`True`	-	(0, )

Validation rules for the curve:

The first pair must have a “State of Energy” of 0.0.
Every “Max Power” value must be greater than 0.0.
No two pairs may share the same “State of Energy”.
Pairs must be ordered by “State of Energy” in ascending order.

Connectors

A vehicle must have 1 to 10 connectors. Multiple connectors can represent different charging capabilities.

Parameter	Description
	Type	Unit	Required	Default value	Valid range
Current Type	The charging current type.
Current Type	Enum	-	`True`	-	Possible values: `Direct_Current` `Alternating_Current_1_Phase` `Alternating_Current_3_Phase`
Base Load	Power drawn by on-vehicle systems during charging, such as battery thermal management or auxiliary electronics. Subtracted from the available station power before applying the efficiency factor.
Base Load	Float	Kilowatts	`False`	0.0	[0, )
Efficiency	Fraction of the charging station’s power that reaches the battery. Some energy is lost during transmission (for example, in cables and on-board electronics), so the value is between 0 and 1, where 1 represents no losses. Applied when estimating the power the battery receives: `netChargingPower = (min(stationPower, vehicleMaxPower) − baseLoad) × efficiency`
Efficiency	Float	-	`False`	1.0	(0, 1]
Max Charging Power	An upper limit for the charging power.
Max Charging Power	Float	Kilowatts	Required unless both Max Charging Voltage and Max Charging Amperage are provided	-	[0, ) 0: implies the power is only limited by the charging facility
Max Charging Voltage	An upper limit for the voltage when charging. The resulting voltage is the minimum of the voltage supported by the respective charging facility and this value.
Max Charging Voltage	Float	Volts	Required if Max Charging Power is not provided	-	[0, ) 0: implies the voltage is only limited by the charging facility
Max Charging Amperage	An upper limit for the current when charging. The resulting amperage is the minimum of the amperage supported by the respective charging facility and this value.
Max Charging Amperage	Float	Amperes	Required if Max Charging Power is not provided	-	[0, ) 0: implies the amperage is only limited by the charging facility
Voltage Range Min	A lower limit for the voltage connector range. The voltage range is only used for selecting suitable charging modes.
Voltage Range Min	Float	Volts	`False`	0	[0, )
Voltage Range Max	An upper limit for the voltage connector range. The voltage range is only used for selecting suitable charging modes. 0 is treated as infinity. During charging, the Max Charging Power, Max Charging Voltage, and Max Charging Amperage values are used instead.
Voltage Range Max	Float	Volts	`False`	0	[0, ) 0: treated as infinity
Plug Types List	List of plug types that correspond to the preceding parameters. Provide 1 to 10 plug types.
Plug Types List	List	-	`True`	-	1 to 10 entries
Plug Types List: Connector Type	The plug type supported by this connector.
Plug Types List: Connector Type	Enum	-	`True`	-	Possible values: Supported connector types
Plug Types List: Requires Adapter	Indicates that an additional adapter is required for a provided connector type. A connector can support multiple plug types. Some combinations require an adapter. For example, a Tesla vehicle equipped with its proprietary socket requires an adapter to connect to a charging station that uses an IEC62196Type1CCS plug.
Plug Types List: Requires Adapter	Boolean	-	`True`	-	`True` `False`

Battery charging curves for connectors

Each connector can have its own battery charging curve instead of using a single vehicle charging curve. Connector charging curves follow the same rules as the general battery charging curve.

If you provide a curve, include 2 to 20 pairs.

Parameter	Description
	Type	Unit	Required	Default value	Valid range
State of Energy	Battery energy level at which the given maximum power applies.
State of Energy	Float	Kilowatt-hours	`True`	-	[0, Battery Capacity Usable]
Max Power	Maximum power that the vehicle can accept at a given state of energy.
Max Power	Float	Kilowatts	`True`	-	(0, )

Applying changes to variants

Changes to variant entries are limited to ensure data consistency and reliability. The following parameters can be changed on an existing variant, because they do not affect consumption or charging:

Brand Name
Model Name
Variant Name
Produced From
Produced To

A different vehicle configuration (for example, another battery size, different dimensions, or any change that alters consumption or charging characteristics) constitutes a separate vehicle variant. Register it as a new vehicle and use the new variantId in Navigation SDK, Automotive Navigation Application, or Online Routing API calls.

To correct or update the physical parameters of an already-registered variant (for example dimensions, weight, maximum speed, battery capacity, or charging data), send an email to ev-integration-support@tomtom.com referencing the registered vehicle by its brand, model, and variant name, and listing the parameters to change with their new values. Do not include the variantId in the email. Treat it as confidential. TomTom validates the request, recomputes the derived consumption parameters, applies the changes, and confirms once the updated values are live. The variantId remains unchanged.

NOTE

Emailing ev-integration-support@tomtom.com is currently the only way to update parameters that affect consumption or charging. There is currently no API or self-service option for these updates.

Using newly registered vehicles in Long Distance EV Routing

Once registered, the vehicle can be used for Long Distance EV Routing in the following products:

Navigation SDK – Integration guide for Navigation SDK
Online Routing API – Integration guide for Online Routing API
Automotive Navigation Application – Integration guide for Automotive Navigation Application (coming soon)