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1. 发明授权

US11333060B2 Control device 有权
公开(公告)号：US11333060B2
公开(公告)日：2022-05-17
申请号：US17418917
申请日：2020-02-07
申请人： Hitachi Astemo, Ltd.
发明人： Kengo Kumano , Masayuki Saruwatari
IPC分类号： F01P7/14 , F01P3/06
摘要： When a coolant controlled to have a constant target temperature is used regardless of a traveling condition of a vehicle, a fuel efficiency of the vehicle may be reduced. Therefore, a VCU 1 predicts the output of an internal combustion engine in a future prediction period on the basis of position information of the vehicle acquired from a positioning unit, traffic information related to a route to a destination, and internal combustion engine control information, determines a target coolant temperature which is the target temperature of the coolant for cooling the internal combustion engine on the basis of the predicted output of the internal combustion engine, sets the change timing for changing the temperature of the coolant to the target coolant temperature on the basis of the predicted output of the internal combustion engine, and controls the operation of the coolant temperature change unit for changing the temperature of the coolant at the change timing so as to reach the target coolant temperature on the basis of the predicted output of the internal combustion engine.

2. 发明授权

US11603819B2 Internal combustion engine control device and ignition device 有权
公开(公告)号：US11603819B2
公开(公告)日：2023-03-14
申请号：US17634820
申请日：2020-07-07
申请人： Hitachi Astemo, Ltd.
发明人： Kengo Kumano , Kazuhiro Oryoji , Masayuki Saruwatari
IPC分类号： F02P5/15 , F02P17/12 , F02P11/00
摘要： In an engine including an auxiliary chamber having an ignition plug therein, an amount of heat generated in the auxiliary chamber tends to be large, and thus it is necessary to suppress abnormal combustion. However, when a sensor is added to the ignition plug, a manufacturing cost of the ignition plug tends to increase. An ECU 2 includes an auxiliary chamber temperature estimation unit 21 that estimates a temperature of the auxiliary chamber 42, and an ignition control unit 22 that delays an ignition timing at a first decrease degree defined in accordance with a change amount of the ignition timing with respect to the temperature of the auxiliary combustion chamber as the temperature of the auxiliary chamber 42 increases in a case where the estimated temperature of the auxiliary chamber 42 is included in a middle temperature region equal to or lower than a first set temperature.

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