摘要:
In a data holding mode, data storage in a one bit/one cell scheme in a normal operating mode are rearranged into data storage in a twin-cell mode in which data are stored in a one bit/two cell scheme. In the twin-cell mode, two sub word lines are simultaneously driven into a selected state, and storage data of memory cells are read out on both of bit lines in a pair, to perform a sense operation. Thus, the read-out voltage can be increased to improve the data retention characteristics for lengthening a refresh interval, resulting in a reduced power consumption in the data holding mode.
摘要:
In a data holding mode, data storage in a one bit/one cell scheme in a normal operating mode are rearranged into data storage in a twin-cell mode in which data are stored in a one bit/two cell scheme. In the twin-cell mode, two sub word lines are simultaneously driven into a selected state, and storage data of memory cells are read out on both of bit lines in a pair, to perform a sense operation. Thus, the read-out voltage can be increased to improve the data retention characteristics for lengthening a refresh interval, resulting in a reduced power consumption in the data holding mode.
摘要:
In a data holding mode, data storage in a one bit/one cell scheme in a normal operating mode are rearranged into data storage in a twin-cell mode in which data are stored in a one bit/two cell scheme. In the twin-cell mode, two sub word lines are simultaneously driven into a selected state, and storage data of memory cells are read out on both of bit lines in a pair, to perform a sense operation. Thus, the read-out voltage can be increased to improve the data retention characteristics for lengthening a refresh interval, resulting in a reduced power consumption in the data holding mode.
摘要:
In a data holding mode, data storage in a one bit/one cell scheme in a normal operating mode are rearranged into data storage in a twin-cell mode in which data are stored in a one bit/two cell scheme. In the twin-cell mode, two sub word lines are simultaneously driven into a selected state, and storage data of memory cells are read out on both of bit lines in a pair, to perform a sense operation. Thus, the read-out voltage can be increased to improve the data retention characteristics for lengthening a refresh interval, resulting in a reduced power consumption in the data holding mode.
摘要:
An ECU of a fuel injection controller acquires information on a load of an internal combustion engine including a fuel injection valve. Based on the load information, a switch is made between low-load-condition control, in which a main injection is performed at a timing that avoids a spray injected by a pilot injection that drifts due to a swirl effect, and high-load condition control, in which the main injection is performed at a timing that interferes with (at least partially overlaps) a spray injected by the pilot injection that drifts due to a swirl effect. In the low-load-condition control, the spray injected by a pilot injection is diffused before the occurrence of ignition to reduce smoke. In the high-load condition control, the spray injected by the main injection is caused to interfere with the spray injected by the pilot injection that contains OH radicals, to reduce smoke.
摘要:
An exhaust gas purifying system reliably detects an amount of accumulated particulates, lengthens forced regeneration intervals, and improves fuel efficiency. The exhaust gas purifying system comprises: a particulate filter 22 disposed in an exhaust system of an internal combustion engine 2 and collecting particulates from exhaust gas, and an NO2 generating unit 21 upstream of or in the particulate filter 22; a discharged particulate amount calculating unit A1 calculates an amount Me of discharged particulates on the basis of an excess air ratio λ; a burnt particulate amount calculating unit A2 calculates an amount Mb of burnt particulates on the basis of the temperature of exhaust gas in front of the particulate filter or the temperature of the particulate filter; and a particulate accumulation amount calculating unit calculates an amount Ma of accumulated particulates on the basis of the amount Me of discharged particulates or the amount Mb of burnt particulates.
摘要:
The present invention is directed to an exhaust gas purification system for an internal combustion engine that performs high pressure PM filter regeneration process by decreasing the degree of opening of an exhaust throttle valve in regenerating the particulate matter trapping capacity of a particulate filter and has as an object to provide a technology that enables to perform the high pressure PM filter regeneration process while suppressing excessive temperature rise of the particulate filter even while the vehicle is moving. According to the invention, a prediction is made, when the high pressure PM filter regeneration process is performed, as to whether there is a possibility that the temperature of the particulate filter will reach a predetermined upper limit temperature, and the pressure inside the particulate filter is controlled in accordance with the prediction.
摘要:
In an exhaust gas control apparatus for an internal combustion engine, in a case where an internal combustion engine is in a high load operating state while a PM trapping ability forcible recovery process for a particulate filter is being performed, EGR gas is caused to flow back from a portion downstream of the particulate filter in an exhaust passage to a portion upstream of a compressor housing in an intake passage, whereby the EGR gas is cooled by an intercooler. In a case where the internal combustion engine is in a low load operating state while the PM trapping ability forcible recovery process is being performed, the EGR gas is caused to flow back from the portion downstream of the particulate filter in the exhaust passage to a portion downstream of the intercooler in the intake passage, whereby the EGR gas is prevented from being unnecessarily cooled.
摘要:
A connection verification apparatus verifies interconnection between a plurality of logic blocks constituting a semiconductor integrated circuit or the like. It includes a connection verification section for verifying interconnection between a first logic block and a second logic block by comparing a signal level of an output terminal of the first logic block with a signal level of an input terminal of the second logic block connected to the output terminal of the first logic block. The connection verification apparatus can verify the interconnection between the two logic blocks without verifying the logic processing to the two logic blocks.
摘要:
An IP generating system includes an IP (Intellectual Property) providing apparatus and at least one development apparatus. The IP providing apparatus searches for a development apparatus installing a memory compiler to be revised with reference to applied condition data managed by a master database, and transmits the revision information as to the memory compiler to the development apparatus. The system can revise the memory compiler without requiring a user to make a decision as to the necessity of the revision of the memory compiler.