Powertrain Electrification Actuators

Park Lock Actuators: electromechanical and hydraulic

Last update: 02 Sep. 2024

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.

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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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