Resources

Yes. Cruise control operates normally, but it cannot be set above the allowed speed limit. If a vehicle enters a road segment or geofenced area with a lower speed limit, ESMART automatically deactivates cruise control until the vehicle slows to the new limit. Drivers retain full control of braking while the electronic throttle governor prevents overspeed.

The allowed speed limit is configured by your company for each speed zone based on fleet policy. It may match the posted speed limit or be set higher or lower depending on safety objectives. These limits are defined in the ESMART portal to meet your fleet’s requirements. For example, some fleets cap maximum speed at 70 mph even when higher limits are posted.

No. ESMART never applies the service brakes and never steers. It regulates engine torque via electronic throttle control to prevent overspeed. Drivers retain full control of braking, steering, and situational decisions, ensuring predictable handling under all conditions.

ESMART maintains school zone data within the system, including applicable time based rules. When a vehicle enters an active school zone, ESMART automatically enforces the lower speed limit. Once the zone ends or the time window closes, normal speed rules resume seamlessly.

When a truck transitions from a higher speed zone to a lower speed zone, ESMART automatically and smoothly adjusts the engine’s available power to match the new posted or geofenced limit. The throttle response gradually decreases as you enter the lower-speed area so there is no abrupt braking or jerking. This allows the driver to naturally decelerate while staying in full control.

ESMART uses high-accuracy GPS with continuously updated map data to match the truck’s location to the posted limit. Location intelligence and geofencing rules ensure the governed speed reflects road class, direction, and context, even on divided highways and complex interchanges.

Dispatchers can rapidly deploy temporary geofences for work zones with reduced speed caps. The truck receives the update over the air, and ESMART enforces the lower speed within the zone to enhance worker safety and reduce citation risk.

ESMART is designed for predictable and safe operation. The system applies fleet defined speed policies to ensure consistent vehicle behavior while maintaining safe operation.

For additional questions, ESMART provides 24/7 customer support at 1-888-4-ESMART.