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Traction Control Using HTD10-40 Torque Divider
Denis Lenoble,Travis Schmidt,Scott Parker,Ben Dupre 유공압건설기계학회 2015 유공압건설기계학회 학술대회논문집 Vol.2015 No.10
Controlling traction in hydraulic propel applications can be a slippery situation. Good traction demands all driving wheels take an equal share of propulsion loads, without slipping, scuffing, or cavitating. There are a wide variety of hydraulic propel circuits and products available to today’s vehicle designer including both closed and open circuit pumps and motors. Economical series circuits are prone to cavitation as inside and outside turning radii differ. Parallel circuits consume energy in the flow dividers and still require additional accommodation for differing wheel speeds. This paper details the approach leading to the development of a multifunctional cartridge valve that divides torque between loads in a series circuit. It discusses the strengths and weaknesses of traditional traction control circuit configurations and the benefits of the new approach. HydraForce HTD valves control traction, accommodate differential flows for cornering, save component cost, and save energy when compared to traditional flow dividing valves.