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公开(公告)号：US20130144515A1
公开(公告)日：2013-06-06
申请号：US13688621
申请日：2012-11-29
Applicant: DENSO CORPORATION
Inventor： Tsuyoshi OKAMOTO , Tsutomu TASHIRO
IPC: F02D45/00
CPC classification number: F02D45/00 , F02D41/068 , F02D2200/503 , F02D2250/24
Abstract: A vehicle has an engine as a driving source. The vehicle has a charge system which generates electric power by using a part of rotational output of an engine, and charges a battery by the generated electric power. Optimal shaft efficiency points are combinations of revolution speed and torque of the engine for maximizing the shaft efficiency. Optimal shaft efficiency line passes through the optimal shaft efficiency points for each engine output level. Warming-up operation line is defined by shifting the optimal shaft output efficiency line to a side to increase heat loss. An engine controller stores the lines. The engine controller performs a warming-up operation by operating the engine at a revolution speed and a torque on the warming-up operation line. The engine controller controls the battery to reduce possibilities of a full charge at a next warming-up.
Abstract translation: 车辆具有作为驱动源的发动机。 车辆具有通过使用发动机的旋转输出的一部分来发电的充电系统，并且通过所产生的电力对电池进行充电。 最佳轴效率点是发动机的转速和转矩的组合，以最大化轴效率。 最佳轴效率线通过每个发动机输出水平的最佳轴效率点。 通过将最佳轴输出效率线转移到侧面来增加热损失来定义预热操作线。 引擎控制器存储线路。 发动机控制器通过以转速和加热操作线上的转矩操作发动机来执行预热操作。 发动机控制器控制电池，以减少在下一次预热时充满电的可能性。
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公开(公告)号：US20190030990A1
公开(公告)日：2019-01-31
申请号：US16073600
申请日：2017-02-01
Applicant: DENSO CORPORATION
Inventor： Tsuyoshi OKAMOTO , Takayuki WATANABE
Abstract: A heat pump and a heater core are provided at a heating coolant water circuit connected to an engine. As heating thermal amount control, the control of decreasing the output of the heat pump and increasing the output of the engine with an increase in an engine outlet water temperature detected by an engine outlet water temperature sensor, thereby ensuring a target heating thermal amount. Thus, in response to a decrease in a heat generation efficiency of the heat pump with an increase in the engine outlet water temperature, the output of the heat pump is decreased so that fuel economy can be improved while the output of the engine is increased so that the target heating thermal amount can be ensured.
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公开(公告)号：US20180312038A1
公开(公告)日：2018-11-01
申请号：US15771558
申请日：2016-10-11
Applicant: DENSO CORPORATION
Inventor： Tsuyoshi OKAMOTO , Takayuki WATANABE
Abstract: An air conditioner for a vehicle includes a cooling water circuit and a heater. The cooling water circuit allows a cooling water to circulate between an engine and a heater core in a heating operation. The engine is a power source of the vehicle. The heater core is configured to heat air using a heat of the cooling water. The heater is located downstream of the engine and upstream of the heater core in the cooling water circuit and is configured to heat the cooling water.
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