Door Control Units

Electronic Control Units for Electric Door Systems

Control logic for single-leaf, double-leaf and sliding bus door systems.

TLG SYSTEMS door control units are developed for electric bus, minibus and commercial passenger vehicle door systems. The control unit manages door movement, vehicle signal integration, anti-pinch protection, emergency inputs, warning outputs and automatic closing logic according to the selected door configuration.

TLG Systems door control unit
Product Family

One control unit platform, configured according to door system requirements.

The control unit can be configured for single-leaf, double-leaf and sliding electric door systems. Final operating mode, input/output configuration and vehicle interface details are defined according to the door type and vehicle project.

Single-Leaf

Single-Leaf Door Control Unit

Developed for outward opening single-leaf electric door systems. It manages actuator movement, end-position behaviour, safety inputs, emergency signals and vehicle interface functions for single-leaf bus and minibus door applications.

Double-Leaf

Double-Leaf Door Control Unit

Developed for outward opening double-leaf electric door systems. It supports door movement control, safety logic, warning outputs, emergency signal input and vehicle integration functions for wider passenger entrance systems.

Sliding Door

Sliding Door Control Unit

Developed for electric sliding door systems used in bus, minibus and special passenger vehicle projects. It manages controlled sliding movement, safety functions, end-position behaviour, emergency inputs and vehicle signal integration.

Technical Data

Control unit technical data.

The following data represents the standard 12/24 VDC control unit specification used for TLG SYSTEMS electric door control unit configurations.

Weight 0.30 kg Current Drain at Rest 0.03 A
Operating Temperature −20 °C to +70 °C Relative Humidity 5% – 95% without condensation
Operating Voltage 9 – 16 VDC (12 VDC)
17 – 30 VDC (24 VDC)
Adjusted Sensitivity 5 A – 20 A (12 VDC)
4 A – 10 A (24 VDC)
Final Tightening 18.5 A (12 VDC)
9.1 A (24 VDC)
Operating Mode Single-leaf, double-leaf or sliding door configuration
Control Unit Features

Core operating functions used across electric door systems.

The control unit is designed to provide safe, flexible and vehicle-electronics-compatible control for 12/24 VDC electric door systems.

  1. 1Dual sensitivity via motor consumption or external signals such as sensitive edge or microswitch.
  2. 2Door opening control lamp output.
  3. 3Automatic closing with a 3 km/h vehicle speed signal and emergency lever lock logic.
  4. 4Tachograph connection support.
  5. 5Emergency signal input.
  6. 6End-of-stroke braking function.
  7. 7Automatic closing while the vehicle is moving.
  8. 8Automatic closing when the parking brake is released.
  9. 9Automatic operation with 12/24 VDC voltages.
  10. 10Single-leaf, double-leaf or sliding door operating mode depending on configuration.
Common Control Functions

Vehicle integration, safety logic and door movement control in one unit.

All control unit configurations are developed around vehicle integration, passenger safety and reliable door operation. Final input/output configuration may vary depending on door type, vehicle electrical architecture, customer requirement and approval strategy.

Vehicle Integration

  • 12V / 24V DC vehicle electrical system compatibility
  • Vehicle signal input support
  • Tachograph interface capability
  • Door open warning light output
  • Parking brake signal integration
  • 3 km/h speed signal integration

Safety Logic

  • Motor current based anti-pinch protection
  • External anti-pinch signal input
  • Sensitive edge compatibility depending on configuration
  • Microswitch input compatibility depending on configuration
  • Emergency signal input
  • Emergency release handle deactivation via speed signal

Door Movement Control

  • Opening and closing movement control
  • End-position braking
  • Automatic closing while vehicle is moving
  • Automatic closing via 3 km/h speed signal
  • Automatic closing when parking brake is released
  • Configuration according to door type
The control unit configuration must be confirmed according to the final door mechanism, vehicle signal structure, emergency release concept and customer-specific wiring architecture.
Vehicle Signal Interface

Designed for integration with vehicle electrical architecture.

The control unit is not only a motor driver. It is part of the door system interface. It receives vehicle and safety signals, manages automatic closing logic and provides outputs required for warning and integration functions.

  • Vehicle speed signal input for 3 km/h logic
  • Parking brake signal input for automatic closing logic
  • Emergency signal input
  • Door open warning lamp output
  • Tachograph connection support
  • External anti-pinch input support
Door control unit connector detail
Speed Signal Used for automatic closing and emergency handle lock/deactivation logic.
Parking Brake Allows automatic door closing when the parking brake is released.
Warning Output Supports door-open warning lamp output for vehicle interface.
Safety Input Supports external anti-pinch signal input depending on configuration.
Door Type Configuration

Configured according to single-leaf, double-leaf or sliding door operation.

The same control unit family is positioned for different door system requirements. The final control logic is selected according to the mechanism, motor, emergency release architecture and vehicle signal strategy.

Single-Leaf Mode

Suitable for outward opening single-leaf electric door mechanisms with lift-and-lock style movement, end-position behaviour, anti-pinch logic and vehicle signal integration.

Double-Leaf Mode

Suitable for outward opening double-leaf electric door systems where wider entrance operation, emergency logic, warning output and vehicle interface support are required.

Sliding Door Mode

Suitable for electric sliding door mechanisms where controlled sliding movement, end-position braking, safety input and vehicle signal logic must be configured according to the project.

Door control unit housing detail
EMC & Vehicle Interface

Developed with vehicle electrical integration in mind.

The control unit design is developed with vehicle electrical integration, EMC requirements and interface responsibility management in mind. For OEM and Stage-2 vehicle projects, cybersecurity-related interface responsibilities can be defined project by project through the relevant vehicle integration agreement.

  • Vehicle electronics compatible control approach
  • Project-specific input/output definition
  • Electrical interface responsibility can be defined with the vehicle integrator
  • Suitable for OEM and Stage-2 vehicle project discussions
  • Final validation depends on vehicle platform and system configuration

Need a door control unit for your electric door system?

Contact TLG SYSTEMS for control unit configuration, door type selection, vehicle signal interface, wiring architecture and project-specific technical support.