Preheating device for engine oil of extended-range electric vehicle
A technology of electric vehicles and preheating devices, which is applied to the lubrication of engine components, machines/engines, and engines. It can solve problems such as mechanical hard wear, high fuel consumption, and poor emissions, and achieve the effects of reducing fuel consumption and optimizing emissions.
Inactive Publication Date: 2017-05-31
ZHEJIANG GEELY POWERTRAIN CO LTD +1
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the problems of mechanical hard wear and high fuel consumption and poor emission in the prior art when starting the range extender in a low temperature environment, and to provide a range extender electric vehicle oil preheating device
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[0018] figure 1 It is a schematic structural diagram of an engine oil preheating device for an extended-range electric vehicle according to an embodiment of the present invention. Such as figure 1 As shown, a range extender engine oil preheating device of the present invention is used for preheating the range extender oil when the range extender is not started, including a motor cooling circulation device and an oil pan water jacket 6 . The motor cooling circulation device is used for cooling the working temperature of the motor and the motor controller with coolant, and providing the heat energy required for preheating to the range extender oil. The oil pan water jacket 6 is arranged at the range extender and is connected to the motor cooling circulation device to form a closed circulation loop, which preheats the engine oil of the range extender when it is not started in a heat exchange mode.
[0019] The range-extended electric vehicle engine oil preheating device of the ...
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The invention discloses a preheating device for engine oil of an extended-range electric vehicle and relates to the technical field of engine control. The preheating device is used for preheating the engine oil of an extended-range device when the extended-range device is not started and comprises a motor cooling circular device and an oil sump water jacket, wherein the motor cooling circular device is used for cooling working temperatures of a motor and a motor controller by using cooling liquid and providing heat energy required by preheating for the engine oil of the extended-range device; the oil sump water jacket is arranged at the extended-range device and connected in the motor cooling circular device to form a closed circulating loop; the engine oil of the extended-range device which is not started is preheated in a heat exchange mode. According to the preheating device disclosed by the invention, after heat and waste heat which are generated by work of the motor controller and the motor are absorbed by the flowing cooling liquid in the heat exchange mode and used for preheating the extended-range device which is not started; on one hand, the working temperatures of the motor and the motor controller are cooled, and on the other hand, the engine oil of the extended-range device is preheated under the condition of not using extra electric energy. Therefore, the aims of reducing energy consumption and optimizing discharge are achieved.
Description
technical field [0001] The invention relates to the technical field of engine control, in particular to a range-extended electric vehicle engine oil preheating device. Background technique [0002] With the increasingly stringent fuel consumption and emission regulations, people's desire for energy saving and emission reduction is more urgent, and the requirements for traditional engines are getting higher and higher, leading more OEMs to devote themselves to the research of hybrid vehicles, and the range-extended engines As a branch of hybrid electric vehicles, it has also been excavated and researched by various OEMs. For a range-extender engine, starting the range-extender in a low-temperature environment will cause it to run at a high speed. Due to the low temperature and high viscosity of the oil, it will cause mechanical wear of the range-extender and easily lead to problems such as high fuel consumption and poor emissions. Contents of the invention [0003] The pur...
Claims
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IPC IPC(8): F01M5/02
CPCF01M5/021F01M2011/0025
Inventor 胡攀李双清王瑞平
Owner ZHEJIANG GEELY POWERTRAIN CO LTD