BEKA’s Motorized Valve for Farm Tractor Safety


Source: BEKA announcement

SAINT-AUBIN-SAUGES, Switzerland – Slowing and stopping a tractor pulling a trailer can be dangerous because hydrostatic tractor transmissions can dramatically slow the tractor without any operation of the brake pedal which means no activation of the trailer’s brakes. BEKA’s new motorized hydropneumatics valve can activate the trailer’s brakes in such circumstances, thus avoiding any potential danger.

A CAN-BUS connected motorized valve will activate the trailer’s brake with or without brake pedal actuation. Moreover, the system could compensate the hysteresis effect of the valve, due to internal friction.

Thanks to the precision control of an automotive designed torque motor and two pressure sensors, the patented BEKA motorized valve reacts extremely precisely and fast to the position calculated by the controller.

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Logical programmable behaviour could be added to the controller:

  • Electrical parking brake
  • Electrical shut off valve (pressure monitoring)
  • Electrical progressive auxiliary brake
  • Spring return and/or current inversion

Other safety features include:

  • In line construction allowing a permanent redundancy with hydraulic circuit
    • Hydraulic: push on the pneumatic piston
    • Electrical motor: pull on the pneumatic piston
  • Self-diagnostic (position, temperature….)
  • Pressure monitoring (hydraulic and pneumatic pressure)

About BEKA

Since 1934, BEKA St-Aubin SA has been designing, developing and producing braking systems for agricultural vehicles, road trains and trailers so they can stop in any circumstances, with the highest possible levels of efficiency and safety.

Located in one of the cradles of high-precision technology, BEKA puts its expertise in its relationships with its customers which include some of the industry’s largest manufacturers.

BEKA is strongly established in the agriculture tractor market and mini trailer market. It exclusively offers high- performance brake kits, and is a leader in Switzerland and Europe, where most mini trailer trucks are equipped with its pneumatic braking system.

Through its experience and mastery of the latest technologies, BEKA provides innovative products and systems to the agricultural and commercial vehicle market.

About Author

Mike Geylin

Mike Geylin is the Senior Editor for The BRAKE Report. Geylin has been in automotive communications for five decades working in all aspects of the industry from OEM to supplier to motorsports as well as reporting for both newspapers and magazines on the industry.