Idle revolution speed control
专利汇可以提供Idle revolution speed control专利检索，专利查询，专利分析的服务。并且PURPOSE: To improve the convergence performance of the number of revolution by determining the slice level of the intake pipe internal pressure on the basis of the number of revolution of an engine and the min. value of the intake pipe internal pressure and determining the period of the holding state of the initial control value from the relation of magnitude between the slice level and the intake pipe internal pressure.
CONSTITUTION: In a control circuit 8 for controlling an ISC valve 7 installed into a bypass passage which makes a detour around a throttle valve, a variation quantity integration means 89 for the valve control quantity and an initial control value calculating means 90 for calculating the initial control value on the basis of the learned value in a memory are provided. Further, a revolution deviation integration means 95 for integration-processing the revolution deviation between an aimed revolution speed and the actual revolution speed in the case when a detecting means 82 detects the idle state is installed. The slice level of the intake pipe internal pressure is determined from the min. value of the intake pipe internal pressure after transition to the idle operation state and the revolution speed at the transition time, and when the intake pipe internal pressure reaches the slice level, the learned value is varied from the initial control value to the valve control value.
COPYRIGHT: (C)1989,JPO&Japio，下面是Idle revolution speed control专利的具体信息内容。
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