A hybrid electric vehicle based on water retarder and its control method
A technology of hybrid electric vehicles and retarders, which is applied in the direction of hybrid electric vehicles, motor vehicles, power plants, etc., can solve the problems of difficult starting of hybrid electric vehicles, low efficiency of braking energy recovery of hybrid electric vehicles, etc., and achieve improved braking Kinetic energy recovery efficiency, improved fuel economy, improved performance and life
Active Publication Date: 2017-03-08
山东沪金精工科技股份有限公司
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Problems solved by technology
[0005] The object of the present invention is to solve the problem that the existing hybrid electric vehicle is difficult to start in severe cold weather, and the efficiency of the hybrid electric vehicle to recover braking energy is low due to the limitation of the inherent working characteristics of the power battery, and to provide a water-based retarder. The hybrid electric vehicle and its control method can make the hybrid electric vehicle start smoothly in the severe cold environment, and at the same time significantly improve the braking energy recovery efficiency of the hybrid electric vehicle during driving.
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Embodiment Construction
[0030] Below in conjunction with accompanying drawing, the concrete structure of hybrid electric vehicle based on water retarder of the present invention is further described:
[0031] Such as figure 1 As shown, the power drive system of a hybrid electric vehicle includes a drive motor 2 , a power battery 3 , an engine 4 , a water retarder 5 , a clutch 13 , a power coupler 14 , a transmission 15 , and an axle 16 .
[0032] The engine 4 is connected in series with the water retarder 5, the output shaft of the engine 4 is connected with the driving wheel input shaft of the water retarder 5, and the driving wheel output shaft of the water retarder 5 is connected with the first input shaft of the power coupler 14 through the clutch 13 connected. The output shaft of the driving motor 2 is connected with the second input shaft of the power coupling 14 . The output shaft of the power coupling 14 is connected to the input shaft of the transmission 15 , while the output shaft of the ...
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The invention relates to a hybrid electric vehicle based on a hydraulic retarder and a control method thereof. A driving system comprises a driving motor, a power battery, an engine, the hydraulic retarder, a clutch, a power coupling, a transmission, a vehicle axle and the like, wherein an output shaft of the engine is connected with a movable wheel input shaft of the hydraulic retarder, and a movable wheel output shaft of the hydraulic retarder is connected with a first input shaft of the power coupling through the clutch. A corresponding heat management system consists of a heat radiator, a cooling fan, a main path water pump, a second switch valve, a first switch valve, a bypass water pump, a cooling pipeline, and a hydraulic retarder control valve, wherein the driving motor, the power battery, a cooling water jacket of the engine and a working cavity of the hydraulic retarder are respectively connected with a heat radiator in parallel.
Description
technical field [0001] The patent of the invention relates to the technical field of hybrid electric vehicle energy management and thermal management, in particular to a water retarder-based hybrid electric vehicle and its control method. Background technique [0002] The ambient temperature has an important impact on the performance and life of the power battery. When the ambient temperature of the power battery is too high, the generation of irreversible substances inside the power battery will be accelerated, and the generation of these irreversible substances will reduce the number of battery life cycles; when the ambient temperature is too low, the formation of irreversible substances will also be accelerated, thereby affecting the service life of the battery. The low ambient temperature of the power battery not only affects its service life, but also affects the charge and discharge capacity of the power battery, and even makes it difficult to start the hybrid vehicle....
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IPC IPC(8): B60K6/36B60K11/02B60W20/00
Inventor 衣丰艳何仁赵长利张竹林刘永辉周长峰
Owner 山东沪金精工科技股份有限公司