Power battery natural air cooling system of blade electric vehicles and control method thereof
A pure electric vehicle and power battery technology, which is applied in the field of pure electric vehicle power battery control, can solve the problems of affecting the vehicle, reducing the air intake of the passenger compartment, and not explaining and verifying, and achieves simple layout, simple and effective control strategy, and a wide range of problems. applied effect
Active Publication Date: 2015-04-08
CHONGQING CHANGAN SUZUKI AUTOMOBILE
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Problems solved by technology
In the existing technical field of electric vehicles, the air inlet of the patent No. 201220406087.9 is connected to the air outlet of the air-conditioning system under the instrument panel, and the cooling air pipe passes through the body floor along the middle channel and connects with the interior of the power battery pack. The cooling air intake pipe is fixed on the cowl lower baffle at the front part of the bottom of the center tunnel. Since the air is drawn from the air conditioning system, the air intake of the passenger compartment is reduced. There is no explanation or verification on whether it will affect the defrosting and defogging functions of the vehicle, and It is easy to cause a conflict between the cooling requirements of the power battery and the air conditioning / heating requirements of the passenger compartment
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[0027] see Figure 1-Figure 5 , a pure electric vehicle power battery natural air cooling control method, comprising the following steps:
[0028] Step 1: Establish a natural air cooling system, which includes a temperature sensor 2, a power battery management unit 3, a vehicle controller 4, and a cooling pipeline, an electric valve 5, an intake fan 6 and an exhaust fan 7;
[0029] Second step: set the cooling pipeline; the cooling pipeline includes an air intake pipeline 11 and an exhaust pipeline 12; the air inlet 14 of the air intake pipeline 11 is arranged beside the HVAC air inlet 16; The inner side of the wall panel is downward, passes through the passenger compartment floor 17, and is connected with the front air inlet of the power battery box 13 under the passenger compartment floor; the front end of the exhaust pipeline 12 is connected with the tail of the power battery box 13, and the rear end is Set it obliquely or vertically downward to prevent water from entering...
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The invention discloses a power battery natural air cooling system of blade electric vehicles and a control method thereof. The power battery natural air cooling system of blade electric vehicles comprises a temperature sensor, a power battery management unit and a vehicle control unit, and is characterized in that the system also comprises a cooling pipeline, an electrically operated valve, an intake fan and exhaust fan. The cooling pipeline contains an air inlet line and an exhaust line. An air inlet of the air inlet line is arranged near an HVAC air inlet. The air inlet line faces downwards along the inner side of a front panel, passes through floor of a passenger compartment and is connected with an air inlet in the front part of a power battery case body below the floor of the passenger compartment. A front end of the exhaust line is connected with a tail part of the power battery case body, and a rear end of the exhaust line is arranged obliquely downward or vertically downward. An air outlet of the exhaust line is arranged below the rear floor of a car. The system provided by the invention can work timely and effectively according to power battery cooling requirements. Other system functions will not be influenced, and cooling requirements of a power battery also can be met. The system can widely be applied to blade electric vehicles.
Description
technical field [0001] The invention relates to the technical field of pure electric vehicle power battery control, in particular to a pure electric vehicle power battery natural air cooling system and a control method. Background technique [0002] In traditional cars, fuel is used as the power source, and the engine works to provide driving force to drive the vehicle; while pure electric vehicles cancel the fuel system, the power battery provides energy, and the motor generates driving force to drive the vehicle. The power battery will be accompanied by a large heat flow during high-power charging / discharging. If it is not dissipated in time, it will easily cause heat accumulation in the battery pack and affect the performance and safety of the power battery. Therefore, it is necessary to design a cooling system for the power battery system. To dissipate heat so that the power battery can work within a reasonable temperature range. [0003] The power battery cooling syste...
Claims
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Login to View More IPC IPC(8): H01M10/613H01M10/625H01M10/637H01M10/6563
CPCH01M2220/20Y02E60/10
Inventor 陈六平先静汤皓茗罗守荣张宗成张怒涛
Owner CHONGQING CHANGAN SUZUKI AUTOMOBILE