Powertrain Electrification Actuators

Park Lock Actuators: electromechanical and hydraulic

Last update: 01 Sep. 2023

What is a Park Lock Actuator?

The Park Lock Actuator (PLA) is an actuator used in automatic transmission (Automatic Transmission – AT, Dual Clucth Transmission – DCT, Dedicated Hybrid Transmission – DHT) or in the reducer in an electric vehicle, enabling Shift By Wire function in the parking position of the transmission. Valeo offers both electromechanical (EMA) and hydraulic (HYD) Park Lock Actuator.


What are Valeo Park Lock Actuator benefits?

  • Park-Lock enables savings on parking brake and anti-theft systems
  • For all kinds of automated transmissions, including eDrives and DHTs
  • Integration in or out of the gearbox
  • Lightweight design high performance plastics

Electro-Mechanical Park Lock Actuator (EPLA)

  • Smart actuators in option
  • Anti-theft norm certified / capable UN ECE R116

Hydraulic Park lock Actuator PLA

  • Extremely compact design thanks to hydraulic actuation
  • Redundant actuation concept for high safely level
  • Optional integration of sensors and valves

Valeo Park Lock Actuator specifications
Electro-Mechanical Park Lock Actuator (EPLA)

  • Torque ranges 1.5 to 8 Nm (peak 12 Nm)
  • Response time typical 300 ms
  • Self locking integrated in actuator available
  • Possible electronics integration allowing control via CAN
  • ASIL B or ASIL C compliant
  • DC or BLDC motor

Valeo Park Lock Actuator specifications
Hydraulic Park lock Actuator PLA

  • Operating pressure: up to 20 bars
  • Stroke: 17mm
  • Disengaging Force: maximum 500N
  • Single or double-acting cylinder

Vehicle type

  • Passenger car
  • Bus
  • Truck
  • Robot taxi
  • Motorcycle
  • Bike
  • Droid
  • Off road

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