No.1019E 2023Special Edition on Automotive Technologies Dual Discharge Vane Pump for 1-Motor Hybrid

Author Hydraulic System Engineering Dept., Automotive Business Unit
Abstract Various types of hybrid electric vehicles (HEV) have become common, one of which is the 1-motor HEV (1M-HEV) in which the AT torque converter is replaced by a motor. Since 2019, JTEKT has been mass-producing pumps optimized for 1M-HEV based on its vane pump for hydraulic power steering that it has been producing for many years. This paper introduces our more efficient vane pump developed by splitting discharge paths into dual circuits and modifying design specifications.
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