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发明公开
CN102635688A 液力变矩器闭解锁方法、系统及用于牵引工作的工程机械 有权

液力变矩器闭解锁方法、系统及用于牵引工作的工程机械
摘要：
本发明公开了一种液力变矩器闭解锁方法，包括：获取当前油门状态下的涡轮扭矩；比对所述涡轮扭矩和预设扭矩范围，当判断所述涡轮扭矩位于所述预设扭矩范围内时，保持液力变矩器的当前工作状态；当判断所述涡轮扭矩低于所述预设扭矩范围中的闭锁扭矩时，闭锁液力变矩器；当判断所述涡轮扭矩高于预设扭矩范围中的解锁扭矩时，解锁液力变矩器。本发明公开的液力变矩器闭解锁方法，通过涡轮扭矩确定当前工程机械的工作情况，进而实现液力变矩器闭锁和解锁。
摘要（英）：

The invention discloses a method for unlocking and locking a hydraulic torque converter. The method comprises the following steps: acquiring the turbine torque at the current acceleration state; comparing ranges of the turbine torque and the preset torque; keeping the current working state of the hydraulic torque converter when the turbine torque is positioned within the preset torque range; locking the hydraulic torque converter when the turbine torque is lower than the locking torque in the preset torque range; and unlocking the hydraulic torque converter when the turbine torque is higher than the unlocking torque in the preset torque range. With adoption of the locking method of the hydraulic torque converter, the working state of the current engineering machine is identified through the turbine torque, and then the condition that hydraulic torque converter is locked and unlocked can be realized.

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